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20062026
most cited6 GHz hyperfast rotation of an optically levitated nanoparticle in vacuum

75 citations

Showing 2025 · quant-phShow all

16 papers · 2 filters

quant-ph2025

High-efficiency loading of 2,400 Ytterbium atoms in optical tweezer arrays

Jiawen Zhu, Changfeng Chen, Li Zhou +10

Neutral atom arrays have emerged as a powerful platform for quantum computation, simulation, and metrology.Among them, alkaline-earth-like atoms exhibit distinct advantages, includ…

quant-ph2025★ 2 cited

Non-commutativity as a Universal Characterization for Enhanced Quantum Metrology

Ningxin Kong, Haojie Wang, Mingsheng Tian +4

A central challenge in quantum metrology is to effectively harness quantum resources to surpass classical precision bounds. Although recent studies suggest that the indefinite caus…

quant-ph2025

Entanglement Phase Transition in Chaotic non-Hermitian Systems

Zhen-Tao Zhang, Feng Mei

We study an entanglement phase transition in a class of chaotic non-Hermitian spin chains whose spin-spin coupling terms commute with the non-Hermitian contributions. Two represent…

quant-ph2025★ 1 cited

Witnessing genuine multipartite entanglement in phase space with controlled Gaussian unitaries

Lin Htoo Zaw, Jiajie Guo, Qiongyi He +2

Many existing genuine multipartite entanglement (GME) witnesses for continuous-variable (CV) quantum systems typically rely on quadrature measurements, which are challenging to imp…

quant-ph2025★ 1 cited

Sufficient Wigner Negativity Implies Genuine Multipartite Entanglement

Lin Htoo Zaw, Jiajie Guo, Qiongyi He +2

Wigner negativity and genuine multipartite entanglement (GME) are key nonclassical resources that enable computational advantages and broader quantum-information tasks. In this wor…

quant-ph2025★ 1 cited

Entanglement manifestation of knot topology in a non-Hermitian lattice

Guoying Zhang, Li Wang, Shu Chen

Although the homotopy-knot theory has been utilized to implement effective topological classification for non-Hermitian systems, the physical implications underlying distinct knot…

quant-ph2025

High-Performance Fully Passive Discrete-State Continuous-Variable Quantum Key Distribution With Local Local Oscillator

Yu Zhang, Xuyang Wang, Chenyang Li +5

We propose and demonstrate a fully passive discrete-state continuous-variable quantum key distribution (CV-QKD), which can eliminate all modulator side channels on the source side,…

quant-ph2025★ 17 cited

Reservoir-engineered squeezed lasing through the parametric coupling

Yuhang Tian, Yajun Wang, Weijie Wang +5

We report the first experimental demonstration of squeezed lasing in a reservoir-engineered optical parametric oscillator (OPO). The OPO provides a basis of squeezed states and par…

quant-ph2025★ 1 cited

Topological Phase Transitions and Edge-State Transfer in Time-Multiplexed Quantum Walks

Huimin Wang, Zhihao Xu, Zhijian Li

We investigate the topological phase transitions and edge-state properties of a time-multiplexed nonunitary quantum walk with sublattice symmetry. By constructing a Floquet operato…

quant-ph2025★ 1 cited

Variational-toolbox-based separability detection of multiqubit states

Jin-Min Liang, Shao-Ming Fei, Qiongyi He

Parametrized quantum circuits (PQCs) are crucial in variational quantum algorithms. While it is commonly believed that the optimal PQC is solely used to reproduce the target state,…

quant-ph2025★ 1 cited

Reciprocal Floquet thermalization in one-dimensional Rydberg atom array

Yunhui He, Yuechun Jiao, Jianming Zhao +1

Periodically driven Floquet quantum systems hold great promise for engineering exotic quantum phases and matter, but are often limited by rapid thermalization. In this work, we pro…

quant-ph2025★ 1 cited

Scalable and modular generation of multipartite entangled states through memory-enhanced fusion

Jixuan Shi, Sheng Zhang, Yukai Wu +5

Efficient generation of large-scale multipartite entangled states is a critical but challenging task in quantum information processing. Although generation of multipartite entangle…

quant-ph2025★ 20 cited

Realizing exceptional points by Floquet dissipative couplings in thermal atoms

Zimo Zhang, Fengbo Zhang, Zhongxiao Xu +3

Exceptional degeneracies and generically complex spectra of non-Hermitian systems are at the heart of numerous phenomena absent in the Hermitian realm. Recently, it was suggested t…

quant-ph2025★ 11 cited

Postselection-Free Cavity-Enhanced Narrow-Band Orbital Angular Momentum Entangled Photon Source

Pei Wan, Wen-Zheng Zhu, Yan-Chao Lou +5

Cavity-enhanced spontaneous parametric down-conversion (SPDC) provides a significant way to produce 10 MHz narrow-band photon pairs, which matches the bandwidth of photon for…

quant-ph2025

Anomalous Point-Gap Interactions Unveil the Mirage Bath

Yue Sun, Tao Shi, Ying Hu

Non-Hermitian topology has revolutionized our understanding of energy gaps and band topology, unveiling phases that do not exist within the Hermitian framework. Nonetheless, its fu…

quant-ph2025★ 2 cited

Uncertainty relations between quantum Fisher information and entanglement monotones

Shaowei Du, Shuheng Liu, Matteo Fadel +2

Entanglement is widely regarded as an essential resource for a number of tasks and can in some cases be quantified by figures of merit related to those tasks. In quantum metrology,…