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09-25
2024
Engineering Hierarchical Symmetries and Massive Nambu-Goldstone Modes
内容： We present a general driving protocol for many-body systems to generate a sequence of prethermal regimes, each exhibiting a lower symmetry than the preceding one [1]. We provide an explicit con...
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09-09
2024
The Long, Winding Road to NISQ Utility in Quantum Simulation of Chemistry and Physics
内容： The search for practical applications of NISQ devices in quantum simulation has been challenging, particularly due to intrinsic noise and the large costs associated with achieving high accuracy...
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09-25
2024
Linear combination of Hamiltonian simulation for non-unitary dynamics with optimal state preparation cost
内容： 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 problem...
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06-22
2023
Polynomial-time classical sampling of high-temperature quantum Gibbs states
内容： The computational complexity of simulating quantum many-body systems generally scales exponentially with the number of particles. This enormous computational cost prohibits first principles sim...
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06-01
2023
Introduction to quantum dynamics
内容： In traditional condensed matter theory, we usually focus on equilibrium properties and linear response, while various phenomena beyond thermal equilibrium are still unknown to us. Recently, dyn...
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09-15
2023
Pilot-reference-free continuous-variable quantum key distribution with efficient decoy-state analysis
内容： Continuous-variable quantum key distribution (CV QKD) using optical coherent detectors is practically favorable due to its low implementation cost, flexibility of wavelength division multiplexi...