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Dual-Capability Machine Learning Models for Quantum Hamiltonian Parameter Estimation and Dynamics Prediction

Autor: An, Zheng, Wu, Jiahui, Lin, Zidong, Yang, Xiaobo, Li, Keren, Zeng, Bei

Recent advancements in quantum hardware and classical computing simulations have significantly enhanced the accessibility of quantum system data, leading to an increased demand for precise descriptions and predictions of these systems. Accurate predi

Externí odkaz: http://arxiv.org/abs/2405.13582

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Entanglement-Enhanced Quantum Metrology in Colored Noise by Quantum Zeno Effect

Autor: Long, Xinyue, He, Wan-Ting, Zhang, Na-Na, Tang, Kai, Lin, Zidong, Liu, Hongfeng, Nie, Xinfang, Feng, Guanru, Li, Jun, Xin, Tao, Ai, Qing, Lu, Dawei

Publikováno v: Physical Review Letters 129, 070502 (2022)

In open quantum systems, the precision of metrology inevitably suffers from the noise. {In Markovian open quantum dynamics, the precision can not be improved by using entangled probes although the measurement time is effectively shortened.} However,

Externí odkaz: http://arxiv.org/abs/2208.05847

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Experimental quantum simulation of non-Hermitian dynamical topological states using stochastic Schr\'odinger equation

Autor: Lin, Zidong, Zhang, Lin, Long, Xinyue, Fan, Yu-ang, Li, Yishan, Tang, Kai, Li, Jun, Nie, XinFang, Xin, Tao, Liu, Xiong-Jun, Lu, Dawei

Publikováno v: npj Quantum Information volume 8, Article number: 77 (2022)

Noise is ubiquitous in real quantum systems, leading to non-Hermitian quantum dynamics, and may affect the fundamental states of matter. Here we report in experiment a quantum simulation of the two-dimensional non-Hermitian quantum anomalous Hall (QA

Externí odkaz: http://arxiv.org/abs/2206.15127

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Experimental Realization of a Quantum Refrigerator Driven by Indefinite Causal Orders

Autor: Nie, Xinfang, Zhu, Xuanran, Huang, Keyi, Tang, Kai, Long, Xinyue, Lin, Zidong, Tian, Yu, Qiu, Chudan, Xi, Cheng, Yang, Xiaodong, Li, Jun, Dong, Ying, Xin, Tao, Lu, Dawei

Indefinite causal order (ICO) is playing a key role in recent quantum technologies. Here, we experimentally study quantum thermodynamics driven by ICO on nuclear spins using the nuclear magnetic resonance system. We realize the ICO of two thermalizin

Externí odkaz: http://arxiv.org/abs/2011.12580

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