Quantum Computation and Simulation by Hamiltonian and Dissipation EngineeringExport this event to calendar

Monday, February 10, 2020 — 2:30 PM EST

Special Seminar featuring Chiao-Hsuan Wang, University of Chicago

Optical and microwave photonics are promising resources for quantum information processing and quantum simulation. Engineering suitable matter-light interactions to control and maintain quantum coherence in the presence of noise lies at the heart of practical quantum computing in such systems. I will first present a Hamiltonian engineering scheme for a photonic cavity using an ancilla qubit. The engineered Hamiltonian admits various applications including canceling unwanted Kerr effect, creating higher-order nonlinearities between photons, designing quantum gate operations resilient to noise, and even realizing quantum error correction. I will also demonstrate dissipation engineering approaches in the context of quantum simulation with light. Built upon the general concept of generating an effective chemical potential by parametric coupling with a dissipative reservoir, our approaches not only provide tunable parameters in performing quantum simulation but also enable preparation of near-equilibrium photonic states of interest. Moreover, the engineered chemical potential allows an analogous voltage bias for photonic circuit elements. Our work paves the way for near-term applications of noisy quantum devices as well as long-term fault-tolerant quantum computations

Coffee and tea to be served at 2:00 pm.

Location 
QNC - Quantum Nano Centre
0101
200 University Avenue West

Waterloo, ON N2L 3G1
Canada

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