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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...
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12-18
2018
Quantum simulations with strongly interacting photons: Simulating exotic phases of matter and applications in quantum technology
Abstract: Classical computers require enormous computing power and memory to simulate even the most modest quantum systems. That makes it difficult to model, for example, why certain materials are in...
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12-04
2018
How to grab an atom without squeezing it
Abstract: Research for cooling and trapping of atoms in the mid 1980s was mainly motivated to enable precise spectroscopic measurement. However, perturbation by the trapping force introduces sig-nifi...
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11-06
2018
Quantum stochastic processes: A complete theory for non-Markovian quantum phenomena
Abstract: In science, we often want to characterise dynamical processes to identify the underlying physics and predict the future states of the system. If the state of the system at any time depends ...
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10-10
2018
Observation of conclusive one-way quantum steering and heralded quantum steering
Abstract: Within the hierarchy of quantum correlations, the Einstein-Podolsky-Rosen steering task (also called quantum steering) is distinguished from both entanglement verification and Bell nonlocal...