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Events on Tuesday, April 12th, 2016

R. G. Herb Condensed Matter Seminar
Out-of -time-order correlators in solid state physics
Time: 10:00 am
Place: 5280 Chamberlin Hall
Speaker: Lara Faoro, CNRS
Abstract: Out-of-time-order correlators, introduced recently in the context of quantum gravity describe the delocalization of information in quantum systems. <br>
In classical chaotic systems, these correlators are known to grow exponentially with the Lyupanov exponent. I discuss the behavior of these correlators in canonical examples of solid state quantum chaotic systems: disordered electrons with and without phonon interaction. In conclusion, I discuss possible measurements of these correlators in superconducting systems.
Host: Robert Mcdermott
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Chaos & Complex Systems Seminar
Data centric computing in emerging nonvolatile memory technologies
Time: 12:05 pm
Place: 4274 Chamberlin Hall (refreshments will be served)
Speaker: Jing Li, Department of Computer Sciences
Abstract: The confluence of disruptive technologies beyond CMOS and "Big Data" workloads calls for a fundamental paradigm shift from homogenous compute-centric system to heterogeneous data-centric system for better innovation, competition and productivity. With the objective of rethinking data-centric system from ground up, through a concrete example, I will show how to leverage emerging memory technology such as phase-change memory (PCM) to realize a new IC building block for future data-centric system. A novel chip was designed and fabricated for the first time, blurring the boundary between computation and storage, i.e., it can either be configured as a compute unit - a high performance search engine or as a storage media - storage class memory. It achieves >10x area reduction compared to homogenous CMOS-based design at the same technology node and reliably operates at ultra-low voltage down to 750mV. In the talk I will briefly highlight a few critical enabling techniques from material, circuit, architecture and algorithm perspectives. I will also highlight the major research activities in my lab in developing collaborative software/hardware solutions to address classical von Neumann bottlenecks.
Host: Clint Sprott
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