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04-22
2019
Quantum Many-Body Computation on a Small Quantum Computer
Abstract: What can we do on a small quantum computer with O(10) qubits? We propose a variational scheme to study ground state properties of quantum many-body systems on small scale near-term noisy q...
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04-01
2019
Raising optical Schrödinger's cat with a cavity QED system
Abstract: Engineering macroscopic quantum state of light is an important goal in quantum optics. However, generating such photonic states in a deterministic way turns out to be hard, as photon-photon...
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02-22
2019
Cryogenic Trapped Ion System for Large Scale Quantum Simulation
Abstract: Trapped ion systems are a leading platform for quantum simulation of spin models. Current experiments are limited to less than 55 ions due to collisions with background gas that destroy the...
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01-29
2019
Position and spin operators for Dirac particles
Abstract: A century ago, Dirac proposed his equation merging quantum mechanics with special relativity. During the last century, the Dirac equation played the key role for the predictions of antimatt...
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01-08
2019
Quantum Approximate Optimization: Performance, Mechanism, and Implementation on Near-Term Devices
Abstract: As quantum computing technology develops, there is a growing interest in finding useful applications of near-term quantum machines. In this talk, I will describe our recent works on using n...
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01-04
2019
Variational quantum simulation
Abstract: The variational method is a versatile tool for classical simulation of a variety of quantum systems. Great efforts have recently been devoted to its extension to quantum computing for effic...