Research

The areas of research pursued within the Department of Physics are listed below. To learn about individual faculty members’ research, click on their name or select “expand all” to see all research within the given area. To see a list of related departments, programs, and research facilities across campus, please visit research resources.

Jump to: Astrophysics & Cosmology Experiment | Cosmology Theory | Atomic, Molecular & Optical | Biophysics | Condensed Matter Experiment | Condensed Matter Theory | High Energy Experiment | High Energy Theory | Machine Learning & AINeutrino & Astroparticle Experiment | Neutrino & Astroparticle Theory | Nuclear Theory | Plasma Experiment | Plasma Theory | Quantum Computing Experiment | Quantum Computing Theory | Wisconsin IceCube Particle Astrophysics Center (WIPAC) | Wisconsin Quantum Institute | X-ray Imaging and Spectroscopy

Astrophysics & Cosmology Experiment

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Keith Bechtol | Observational Cosmology

Dark Energy, Dark Matter, Neutrinos, Gravitational Waves: We use the whole Universe as a laboratory to explore the fundamental nature of matter, energy, space, and time. Currently, our research group focuses on construction, operations, and data analysis for wide-area, time-domain optical and near-infrared imaging surveys of the night sky. We often combine our optical survey data with other datasets to conduct multiwavelength and multimessenger analyses. Main projects include the Dark Energy Survey (DES) and Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST).

Bechtol Group Homepage | Keith Bechtol Directory Listing

Stas Boldyrev, Cary Forest, John Sarff, Paul Terry | Plasma Astrophysics

The Wisconsin Plasma Physics Laboratory (WiPPL) operates several multi-investigator, intermediate-scale plasma physics devices, and represents the Plasma Physics efforts within the University of Wisconsin Physics Department. WiPPL serves both UW and external users, and supports the core of a broad research program to understand the flow of energy between fields and particles in plasmas.

WiPPL coordinates the joint operation of the Big Red Plasma Ball (BRB) and Madison Symmetric Torus (MST) devices with a focus on frontier basic plasma science. The combined capabilities of these two devices and their associated infrastructure creates a unique opportunity to lead the world in expanding the basic plasma frontier and to fully realize the extraordinary potential of laboratory experiments to transform space and astrophysical plasma science.

WIPPL homepage
Directory listings: Boldyrev | Forest | Sarff | Terry

Francis Halzen | Analysis of data from the IceCube neutrino observatory

I am a theoretician studying problems at the interface of particle physics, astrophysics and cosmology. Since 1987, I have been working on the AMANDA experiment, a first-generation neutrino telescope at the South Pole. AMANDA observations represented a proof of concept for IceCube, a kilometer-scale observatory. My main interest is to use the beam of high energy neutrinos reaching us from the cosmos discovered by IceCube to identify and image their sources and to study the neutrinos themselves.

Halzen IceCube homepage | Francis Halzen directory listing

Lu Lu | Experimental Particle Astrophysics

I am involved in two particle astrophysics experiments – the IceCube Neutrino Observatory and the Pierre Auger Observatory. The Pierre Auger Observatory is the world’s largest cosmic ray detector and has been making measurements on the highest energy particles in the Universe. These particles are the rarest and typically carry an energy above 10^19 eV, which is much greater than what can be reached by particles accelerated by human technology. After almost 100 years it is still a mystery how the Universe is able to power up those particles. The questions we are trying to answer:

  • Where are the highest energy particles from?
  • Is the Standard Model still valid at such high energies?
  • How does nature accelerate particles so efficiently?
  • Could these particles be decay or annihilation products of dark matter?
IceCube homepage | Lu Lu directory listing

Dan McCammon | High Energy Astrophysics: X-ray astronomy

X-ray observation of hot gas in the Universe and Instrumentation development for satellites and sounding rockets.

McCammon Group Homepage | Dan McCammon Directory Listing

Peter Timbie | Observational Cosmology

Our research group observes the Universe on large scales to find clues about how it began. We detect light emitted at different stages in the evolution of the cosmos to make 3D maps that reach from the Big Bang to the present day. We specialize in developing new hardware and software techniques to detect this ancient light, which comes to us in the form of radio waves and millimeter waves.

Timbie Group homepage | Peter Timbie directory listing

Cosmology Theory

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A. Baha Balantekin | Research at the interface of particle, nuclear and astrophysics/cosmology using the tools of quantum information science

Neutrino Cosmology, Big Bang Nucleosynthesis

QuantiSED project | A. Baha Balantekin directory listing

Daniel Chung | Interface of cosmology and high energy theory

Moritz Münchmeyer | Computational Cosmology, Theoretical Cosmology

We are developing computational and theoretical methods to probe fundamental physics with cosmology. With our methods we are contributing to several experimental collaborations, in particular Simons Observatory, Rubin Observatory and CHIME-FRB. A part of our research is focusing on Machine Learning methods, which have exciting potential for cosmology.

Münchmeyer Group homepage | High Energy Physics | Moritz Münchmeyer directory listing

Gary Shiu | String theory, particle physics, cosmology, and AI

Professor Shiu’s research program is at the interface of string theory, particle physics, and cosmology. His research aims to uncover the laws of nature at the most fundamental level, and apply the insights so obtained to understand and predict observable pheonomena in the domains of high energy physics, astroparticle and cosmology. Major thrusts of his research include developing mechanisms and models from string theory that lead to realistic four-dimensional physics, and finding observables that may teach us theories at very high energies. His research efforts have also drawn him to develop mathematical and data science methods.

Shiu homepage | String Theory | AI and MLGary Shiu directory listing

Atomic, Molecular & Optical Physics

a metal apparatus with a focused blue laser dot in the center made up of fluorescent atoms

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Uwe Bergmann | Nonlinear X-ray Phenomena and New Methods

We excite atoms and molecules with intense ultrafast pulses and explore and control their decay for novel precision measurements. We develop new X-ray techniques to identify and image chemical elements and their speciation. Powerful X-ray lasers and synchrotrons deliver the atomic resolution X-ray Vision.

Bergmann Group homepage | Uwe Bergmann directory listing

Shimon Kolkowitz | Metrology, Tests of Fundamental Physics, and Nanoscale Quantum Sensing

We are building some of the most precise clocks in the world out of ultracold strontium atoms trapped in optical lattices. We are investigating ways to make these “optical lattice clocks” even more precise and accurate. We are also developing novel applications of these amazing instruments, including new tests of relativity, space-based gravitational wave detectors, and searches for dark matter and other physics beyond the Standard Model.

We are researching new sensing techniques using single atom-scale defects trapped inside of diamonds. We are developing new protocols using spatial and temporal correlations between these defects to probe correlated dynamics in strongly interacting condensed matter systems. We are also investigating applications for new and under-explored defects in diamond and 2D materials.

Kolkowitz Group homepage | Shimon Kolkowitz directory listing

Jim Lawler | Laboratory Astrophysics

We develop and apply methods for measuring atomic transition probabilities. These transition probabilities are essential for quantitative spectroscopy on distant stars.

Jim Lawler directory listing

Mark Saffman |

Thad Walker |

Deniz Yavuz |

Biophysics

what looks like an abstract rainbow-colored image is really colors assigned to crystal orientation angles

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Uwe Bergmann | Real-Time Chemical Reactions and Structural Changes​

We observe chemical reactions and structural changes in natural and artificial systems while they take place. We probe advanced 2D materials, metal complexes and metalloproteins, to understand their transformations and how they function. Ultrafast pulses from X-ray lasers and lab sources give us the high-speed X-ray vision to watch the inner workings of electrons, atoms, and molecules in real time.

Bergmann Group homepage | Uwe Bergmann directory listing

Pupa Gilbert | Experimental biophysics and condensed matter with synchrotron spectromicroscopies

My group and I are interested in biomineralization, that is, in understanding the formation mechanisms, physical nanoscale structure, composition, and materials properties of natural biominerals. These include coral skeletons, sea urchin spines, mollusk shell nacre, and tooth enamel.

Gilbert Group homepage | Pupa Gilbert directory listing

Thad Walker |

Condensed Matter Experiment

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Victor Brar |

We probe the electronic, magnetic, and optical behavior of materials at the atomic-scale in search of new phenomena that have both fundamental and technological importance. Examples of such effects include highly localized plasmonic modes, long-range magnetic interactions, and deep impurity states. The types of behavior we search for are general and manifest in many types of systems, but they often occur most dramatically in exotic materials that exhibit quantum effects and in low dimensional materials with strong electron interactions. When new behavior is discovered locally, we use large-scale lithographic methods to structure the host material, such that those phenomena can manifest macroscopically in ways that can be utilized for new device applications.

Brar Lab Homepage | Victor Brar directory listing

Mark Eriksson | Quantum computing and semiconductor physics

The Eriksson Group focuses on semiconductor quantum dot qubits, quantum computing and information, quantum measurement, nanostructure fabrication, thermal transport, semiconductor physics, and the interface between semiconducting and superconducting quantum science and technology.

Eriksson Group Homepage | Mark Eriksson directory listing

Pupa Gilbert | Experimental biophysics and condensed matter with synchrotron spectromicroscopies

My group and I are interested in biomineralization, that is, in understanding the formation mechanisms, physical nanoscale structure, composition, and materials properties of natural biominerals. These include coral skeletons, sea urchin spines, mollusk shell nacre, and tooth enamel.

Gilbert Group homepage | Pupa Gilbert directory listing

Shimon Kolkowitz | Metrology, Tests of Fundamental Physics, and Nanoscale Quantum Sensing

We are building some of the most precise clocks in the world out of ultracold strontium atoms trapped in optical lattices. We are investigating ways to make these “optical lattice clocks” even more precise and accurate. We are also developing novel applications of these amazing instruments, including new tests of relativity, space-based gravitational wave detectors, and searches for dark matter and other physics beyond the Standard Model.

We are researching new sensing techniques using single atom-scale defects trapped inside of diamonds. We are developing new protocols using spatial and temporal correlations between these defects to probe correlated dynamics in strongly interacting condensed matter systems. We are also investigating applications for new and under-explored defects in diamond and 2D materials.

Kolkowitz Group homepage | Shimon Kolkowitz directory listing

Robert McDermott | Superconducting Quantum Computing

We develop tools to allow scaling of superconducting quantum circuits to arrays comprising thousands or millions of qubits, as needed for robust quantum error correction. We have separate research efforts in the areas of quantum coherence, quantum measurement, and high-fidelity coherent control. In addition, we are working with collaborators to develop hybrid quantum systems that capitalize on the distinct strengths of disparate quantum technologies.

McDermott Group homepage | Robert McDermott directory listing

Marshall Onellion |

Mark Rzchowski | Electronic, spintronic, and structural correlations in complex thin film systems

My research focuses on strong correlations and nanoscale physics at interfaces in thin-film heterostructures of complex materials. The effects range from new electronic phases existing at the interface, to novel coupling of strong correlations across an interface between epitaxial films with magnetic, ferroelectric, superconducting, or ferroelastic order. These are complex systems at the forefront of research in growth, measurement, and theoretical analysis that probe open questions in strongly correlated electronic systems. My group’s experimental measurements of electronic, spintronic, magnetic, and structural properties has resulted in collaborative publications with film growers, electron microscopists, and condensed matter theorists. Recent work discusses charge-spin conversion, noncollinear antiferromagnetism, magnetoelectric coupling, and two-dimensional physics.

Mark Rzchowski directory listing

Condensed Matter Theory

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Alex Levchenko | Quantum kinetics, mesoscopic physics, nonequilibrium systems, superconductivity, topological materials

Active research projects include (i) anomalous and nonlinear Hall effects in topological semimetals; (ii) quantum criticality in superconductors; (iii) electronic hydrodynamics; (iv) proximity and Josephson effects in multiterminal circuits.

Alex Levchenko directory listing

Bob Joynt | Quantum Computing and Condensed Matter Theory

The Joynt research group works in a number of different areas of theoretical physics, but particularly in quantum computing and condensed matter physics.

In condensed matter theory, some recent projects have included discrete scale invariance in topological materials and optical properties of unconventional superconductors.

Joynt Group Homepage | Bob Joynt directory listing 

Maxim Vavilov | Transport and non-equilibrium phenomena in quantum many particle systems

My research focuses in the area of theoretical condensed matter physics. I study transport and non-equilibrium phenomena in quantum many particle systems, as well as the role of disorder and chaos in the quantum limit. My research is related to problems motivated by experimental investigation of mesoscopic and nanoscale electron systems and intended for future development of electronics and quantum information technologies.

Vavilov Group Homepage | Maxim Vavilov directory listing

High Energy Experiment

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Kevin Black |

Tulika Bose |

Duncan Carlsmith |

Sridhara Dasu | Particle Physics at the Energy Frontier

The UW group of Profs Kevin Black, Tulika Bose, Sridhara Dasu and Matt Herndon continues its active leadership roles in the Compact Muon Solenoid (CMS) experiment at the LHC, as we explore proton-proton collisions at 13 TeV and prepare for future higher luminosity running. The UW group is leading physics analyses in characterization of the Higgs Boson, searches for its potential partners, searches for particle dark matter, and extensive studies of Electroweak phenomena. The UW group built, commissioned, operates, and upgrades major parts of CMS: the trigger system, including the Level-1 (L1) calorimeter trigger and higher level triggers (HLT), the endcap muon system (EMU), including its infrastructure and cathode strip chambers (CSCs) and Gas Electron Multiplier (GEMs), software for simulation and event processing, and a leading Tier-2 computing facility.

CMS Experiment page | Sridhara Dasu directory listing

Matt Herndon | Experimental elementary particle physics and applications of Machine Learning

My research interests lie in the frontier of fundamental physics. High Energy Physics (HEP) offers some of the most interesting experimental opportunities to expand our knowledge of fundamental physics and discover new physics phenomena. I am simultaneously interested in pursuing a greater understanding of the Standard Model (SM) and in studying the predictions of theories that pose solutions to the fundamental questions not answered by the SM of particle physics. These questions include, but are not limited to, the exact nature of Electroweak Symmetry breaking and how the SM particles acquire mass, how to unify gravity with the other fundamental forces and the nature of dark matter. These questions have led me to pursue a diverse research program including elements such as measurements of SM cross sections, SM Higgs boson searches, searches for new physics particles such as very massive vector bosons, and the scattering of multiple gauge bosons. The unifying theme of this research effort is searches for pairs of SM bosons with decays to leptons. I am also interested in the applications of machine learning to analysis, particle identification, and algorithms for triggering and reconstruction.

Herndon homepage | High Energy Physics | CMS Experiment | Matthew Herndon directory listing

Albrecht Karle |

Yibin Pan |

Brian Rebel | Accelerator-based experimental neutrino physics

The Wisconsin accelerator-based experimental neutrino physics group acts to investigate rare processes by creating very intense beams of particles that allow the probing of those processes. The group is active in the NOvA and DUNE experiments, which use the most intense beams of neutrinos in the world to understand neutrino oscillations. Neutrino oscillations are the changing of neutrinos from one type into another as they propagate from their point of production. Neutrino oscillations may be able to explain the origin of our matter-dominated Universe.

Rebel Group homepage | Brian Rebel directory listing

Sau Lan Wu |

High Energy Theory

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Yang Bai | Particle phenomenology

I am a theoretical particle physicist and interested in understanding how the Universe works at both microscopic and macroscopic scales. My research topics contain dark matter, black hole, neutrino, collider and early universe physics.

Bai homepage | Yang Bai directory listing

A. Baha Balantekin | Research at the interface of particle, nuclear and astrophysics/cosmology using the tools of quantum information science

Neutrino properties in and beyond the Standard Model, dark matter detection

QuantiSED project | A. Baha Balantekin directory listing

Vernon Barger |

Daniel Chung |

Lisa Everett | Phenomenology, Physics beyond the Standard Model

My research program in theoretical high energy physics focuses on seeking connection between observable particle physics and the domain of fundamental theory. The goals are to understand and improve the extent to which the current and anticipated data from collider, cosmological, and neutrino detection experiments can probe physics beyond the Standard Model at the TeV scale and beyond.

Everett homepage | Phenomenology | Lisa Everett diretory listing

Francis Halzen | Study of the properties and sources of high energy cosmic neutrinos

I am a theoretician studying problems at the interface of particle physics, astrophysics and cosmology. Since 1987, I have been working on the AMANDA experiment, a first-generation neutrino telescope at the South Pole. AMANDA observations represented a proof of concept for IceCube, a kilometer-scale observatory. My main interest is to use the beam of high energy neutrinos reaching us from the cosmos discovered by IceCube to identify and image their sources and to study the neutrinos themselves.

Halzen IceCube homepage | Francis Halzen directory listing

Akikazu Hashimoto |

Gary Shiu | String theory, particle physics, and cosmology, and AI

Professor Shiu’s research program is at the interface of string theory, particle physics, and cosmology. His research aims to uncover the laws of nature at the most fundamental level, and apply the insights so obtained to understand and predict observable pheonomena in the domains of high energy physics, astroparticle and cosmology. Major thrusts of his research include developing mechanisms and models from string theory that lead to realistic four-dimensional physics, and finding observables that may teach us theories at very high energies. His research efforts have also drawn him to develop mathematical and data science methods.

Shiu homepage | String Theory | AI and MLGary Shiu directory listing

Machine Learning and AI

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Sridhara Dasu | Extracting Exciting Particle Physics Signatures from the Impending Data Deluge

Machine learning techniques are used by the members of the CMS group led by Profs. Bose and Dasu for improving the sensitivity of new physics searches and increasing the accuracy of measurements.

Further machine learning techniques are being developed to more efficiently select events online using auto-encoders, using massively parallel processors used in the trigger systems. Because the event selection code is processed on GPUs and FPGAs ML techniques for usage on such resources is under investigation.

Sridhara Dasu directory listing

Matthew Herndon | Experimental elementary particle physics and applications of Machine Learning

My research interests lie in the frontier of fundamental physics. High Energy Physics (HEP) offers some of the most interesting experimental opportunities to expand our knowledge of fundamental physics and discover new physics phenomena. I am simultaneously interested in pursuing a greater understanding of the Standard Model (SM) and in studying the predictions of theories that pose solutions to the fundamental questions not answered by the SM of particle physics. These questions include, but are not limited to, the exact nature of Electroweak Symmetry breaking and how the SM particles acquire mass, how to unify gravity with the other fundamental forces and the nature of dark matter. These questions have led me to pursue a diverse research program including elements such as measurements of SM cross sections, SM Higgs boson searches, searches for new physics particles such as very massive vector bosons, and the scattering of multiple gauge bosons. The unifying theme of this research effort is searches for pairs of SM bosons with decays to leptons. I am also interested in the applications of machine learning to analysis, particle identification, and algorithms for triggering and reconstruction.

Herndon homepage | High Energy Physics | CMS Experiment | Matthew Herndon directory listing

Moritz Münchmeyer | Machine Learning for Cosmology

We are developing computational and theoretical methods to probe fundamental physics with cosmology. With our methods we are contributing to several experimental collaborations, in particular Simons Observatory, Rubin Observatory and CHIME-FRB. A part of our research is focusing on Machine Learning methods, which have exciting potential for cosmology.

Münchmeyer Group homepage | Moritz Münchmeyer directory listing

Gary Shiu | String theory, particle physics, cosmology, and AI

Professor Shiu’s research program is at the interface of string theory, particle physics, and cosmology. His research aims to uncover the laws of nature at the most fundamental level, and apply the insights so obtained to understand and predict observable pheonomena in the domains of high energy physics, astroparticle and cosmology. Major thrusts of his research include developing mechanisms and models from string theory that lead to realistic four-dimensional physics, and finding observables that may teach us theories at very high energies. His research efforts have also drawn him to develop mathematical and data science methods.

Shiu homepage | String Theory | Gary Shiu directory listing

Neutrino & Astroparticle Physics Experiment

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Ke Fang |

We collect various types of messengers sent by the Universe and use them to understand how nature works. In particular, we observe with the gamma-ray telescopes HAWC and Fermi-LAT, and the neutrino observatory IceCube. We also run numerical simulations to study the theory of high-energy emission by black holes and neutron stars.

IceCube | HAWC | Ke Fang directory listing

Francis Halzen | Analysis of data from the IceCube neutrino observatory

I am a theoretician studying problems at the interface of particle physics, astrophysics and cosmology. Since 1987, I have been working on the AMANDA experiment, a first-generation neutrino telescope at the South Pole. AMANDA observations represented a proof of concept for IceCube, a kilometer-scale observatory. My main interest is to use the beam of high energy neutrinos reaching us from the cosmos discovered by IceCube to identify and image their sources and to study the neutrinos themselves.

Halzen IceCube homepage | Francis Halzen directory listing

Kael Hanson |

Albrecht Karle | Experimental neutrino astronomy, neutrino astrophysics

Cosmic neutrinos are a unique tool to study the non-thermal, high energy Universe. At energies above 10 TeV, cosmic rays and gamma rays are obstructed by various absorption processes. With IceCube, we were able to discover and characterize a cosmic neutrino flux. What are the sources, what is the precise flux and flavor composition between 1 TeV and 1000 PeV? Much is still to be learned. The radio detection method (ARA, RNO) is exploring the highest energies. I am also working on the next generation experiment, IceCube-Gen2.

Neutrino astronomy with IceCube | Detection of cosmic neutrinos with radio detectors | Albrecht Karle directory listing

Lu Lu | Experimental Particle Astrophysics

I am involved in two particle astrophysics experiments – the IceCube Neutrino Observatory and the Pierre Auger Observatory. The Pierre Auger Observatory is the world’s largest cosmic ray detector and has been making measurements on the highest energy particles in the Universe. These particles are the rarest and typically carry an energy above 10^19 eV, which is much greater than what can be reached by particles accelerated by human technology. After almost 100 years it is still a mystery how the Universe is able to power up those particles. The questions we are trying to answer:

  • Where are the highest energy particles from?
  • Is the Standard Model still valid at such high energies?
  • How does nature accelerate particles so efficiently?
  • Could these particles be decay or annihilation products of dark matter?
IceCube homepage | Lu Lu directory listing

Brian Rebel | Accelerator-based experimental neutrino physics

The Wisconsin accelerator-based experimental neutrino physics group acts to investigate rare processes by creating very intense beams of particles that allow the probing of those processes. The group is active in the NOvA and DUNE experiments, which use the most intense beams of neutrinos in the world to understand neutrino oscillations. Neutrino oscillations are the changing of neutrinos from one type into another as they propagate from their point of production. Neutrino oscillations may be able to explain the origin of our matter-dominated Universe.

Rebel Group homepage | Brian Rebel directory listing

Justin Vandenbroucke |

Neutrino & Astroparticle Physics Theory

illuminated IceCube observatory with the night sky behind it

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A. Baha Balantekin | Research at the interface of particle, nuclear and astrophysics/cosmology using the tools of quantum information science

Neutrinos from core-collapse supernovae and neutron-star mergers, role of neutrinos and axions in stellar evolution

QuantiSED project | A. Baha Balantekin directory listing

Vernon Barger |

Daniel Chung

Lisa Everett | Phenomenology, Physics beyond the Standard Model

My research program in theoretical high energy physics focuses on seeking connection between observable particle physics and the domain of fundamental theory. The goals are to understand and improve the extent to which the current and anticipated data from collider, cosmological, and neutrino detection experiments can probe physics beyond the Standard Model at the TeV scale and beyond.

Everett homepage | Phenomenology | Lisa Everett diretory listing

Francis Halzen | Study of the properties and sources of high energy cosmic neutrinos

I am a theoretician studying problems at the interface of particle physics, astrophysics and cosmology. Since 1987, I have been working on the AMANDA experiment, a first-generation neutrino telescope at the South Pole. AMANDA observations represented a proof of concept for IceCube, a kilometer-scale observatory. My main interest is to use the beam of high energy neutrinos reaching us from the cosmos discovered by IceCube to identify and image their sources and to study the neutrinos themselves.

Halzen IceCube homepage | Francis Halzen directory listing

Akikazu Hashimoto |

Nuclear Theory

abstract image of an atom

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A. Baha Balantekin | Research at the interface of particle, nuclear and astrophysics/cosmology using the tools of quantum information science

Nuclear astrophysics, nuclear structure and reactions

A. Baha Balantekin directory listing

Plasma Physics Experiment

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Stas Boldyrev |

Jan Egedal |

Cary Forest |

John Sarff |

Plasma Physics Theory

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Stas Boldyrev |

Jan Egedal |

Paul Terry | Fusion Plasma Theory, Plasma Astrophysics

Fusion Plasma Theory

Turbulence and transport in magnetically confined plasmas, including multiscale interactions in magnetically active turbulence; physics of transport reduction processes, including suppression by mean shear flow and enhanced coupling to large-scale sinks; mechanisms for turbulent saturation of plasma instabilities, including large-scale stable modes; time dependent behavior in saturation; application of saturation mechanisms to optimization of 3D field design for transport reduction in stellarators.

Plasma astrophysics

Interstellar turbulence; intermittency in small scale kinetic Alfvén wave turbulence and effect on pulsar scintillation; shear flow instability in magnetohydrodynamic plasmas; effect of stable modes in instability driven astrophysical turbulence on magnetic field generation and small-scale excitation.

Paul Terry directory listing

Ellen Zweibel | Plasma Astrophysics

I work in theoretical astrophysics, and specialize in plasma astrophysics. I’m interested in the origin and evolution of astrophysical magnetic fields, cosmic rays, and the basic plasma processes that transfer energy between fields and particles. These interests come together in the accompanying figure, which shows a numerical simulation of cosmic rays propagating through a simple model of the magnetized, clumpy, interstellar medium. Cosmic rays pressure builds up behind the clumps and pushes them outward. The simulation was performed by Chad Bustard (PhD 2020) and published in the Astrophysical Journal (Bustard & Zweibel 2021).

Ellen Zweibel directory listing

Quantum Computing Experiment

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Mark Eriksson | Quantum computing and semiconductor physics

The Eriksson Group focuses on semiconductor quantum dot qubits, quantum computing and information, quantum measurement, nanostructure fabrication, thermal transport, semiconductor physics, and the interface between semiconducting and superconducting quantum science and technology.

Eriksson Group Homepage | Mark Eriksson directory listing

Robert McDermott | Superconducting Quantum Computing

We develop tools to allow scaling of superconducting quantum circuits to arrays comprising thousands or millions of qubits, as needed for robust quantum error correction. We have separate research efforts in the areas of quantum coherence, quantum measurement, and high-fidelity coherent control. In addition, we are working with collaborators to develop hybrid quantum systems that capitalize on the distinct strengths of disparate quantum technologies.

McDermott Group homepage | Robert McDermott directory listing

Mark Saffman |

Thad Walker |

Quantum Computing Theory

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A. Baha Balantekin | Research at the interface of particle, nuclear and astrophysics/cosmology using the tools of quantum information science

Algorithms for nuclear, particle and astrophysics/cosmology

QuantiSED project | A. Baha Balantekin directory listing

Bob Joynt | Quantum Computing and Condensed Matter Theory

The Joynt research group works in a number of different areas of theoretical physics, but particularly in quantum computing and condensed matter physics.

In quantum computing the main areas are quantum algorithms, general theory of quantum correlations, decoherence with an emphasis on evanescent-wave Johnson noise, quantum error correction, and new designs for electron spin qubit structures.

In condensed matter theory, some recent projects have included discrete scale invariance in topological materials and optical properties of unconventional superconductors.

Joynt Group Homepage | Bob Joynt directory listing 

X-ray Imaging and Spectroscopy

a machine is set up to "read" the hidden messages in an old manuscript

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Uwe Bergmann | Discovering Our Natural History and Cultural Heritage​

We reveal damaged, erased, and obstructed writings in ancient manuscripts to learn about the genius of their authors and their cultural impact. We image chemical ghosts of fossils to explore prehistoric creatures and their preservation. Synchrotron rapid-scan imaging and spectroscopy provide us the microscopic X-ray vision.

Bergmann Group homepage | Uwe Bergmann directory listing

Pupa Gilbert | Experimental biophysics and condensed matter with synchrotron spectromicroscopies

My group and I are interested in biomineralization, that is, in understanding the formation mechanisms, physical nanoscale structure, composition, and materials properties of natural biominerals. These include coral skeletons, sea urchin spines, mollusk shell nacre, and tooth enamel.

Gilbert Group homepage | Pupa Gilbert directory listing