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09-25
2024
Linear combination of Hamiltonian simulation for non-unitary dynamics with optimal state preparation cost
Abstract: We propose a simple method for simulating a general class of non-unitary dynamics as a linear combination of Hamiltonian simulation (LCHS) problems. LCHS does not rely on converting the pro...
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07-19
2021
Space-Time Duality between Quantum Chaos and Non-Hermitian Boundary Effect
Title：Space-Time Duality between Quantum Chaos and Non-Hermitian Boundary Effect Speaker： Tiangang Zhou Institute For Advanced Study, Tsinghua University Time： 2021-07-19 10:30-2021-07-19 11:30 Ven...
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11-19
2013
Measurement-based noiseless linear amplification for entanglement distillation a
Abstract: A fundamental feature of the quantum world that we live in is that (non-orthogonal) quantum states cannot be cloned. This no cloning theorem lies at the heart of quantum mechanics and is a ...
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12-30
2014
Tackling decoherence via weak quantum measurement and quantum measurement revers
Abstract: Decoherence, often caused by unavoidable coupling with the environment, leads to degradation of quantum coherence. For a multipartite quantum system, decoherence leads to degradation of ent...
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06-20
2019
Nitrogen vacancy center in diamond: a nanoscale quantum sensor for high pressure, and a novel platform to study out-of-equilibrium quantum dynamics
Abstract: Recent experimental advances have enabled the control and manipulation of individual quantum mechanical spins in solids. In this talk, I will introduce two directions our group is currently...
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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...