Preliminary Exam |
Events on Wednesday, May 7th, 2025
- Tunable control and readout of quantum dot hybrid qubits
- Time: 3:00 pm - 5:00 pm
- Place: Chamberlin Hall Room 5310
- Speaker: Jared Benson
- Abstract: In this talk, I will discuss three projects that utilize the tunability of the semiconductor quantum dot platform to enhance the characteristics of the quantum dot hybrid qubit (QDHQ). The first project involves the use of dynamic tunnel rate control and latched readout to enable single-shot readout and coherent manipulation of the QDHQ. Next, I will present a method in which we use near-infrared illumination in the presence of applied gate biases to tune the device operating voltages to be smaller and more uniform. Last, I will outline our ongoing efforts to demonstrate a QDHQ with hole spins instead of electron spins, which offers a tunable qubit energy splitting that can be adjusted by changing the confinement of the quantum dots. These projects represent meaningful steps towards the first experimental realization of a two-qubit interaction between quantum dot hybrid qubits.
- Host: Mark Alan Eriksson