Experimental Quantum Simulation of Entanglement in Many-Body Systems

被引：33

作者：

Zhang, Jingfu ^{[1
,2
]}

Wei, Tzu-Chieh ^{[1
,2
,4
]}

Laflamme, Raymond ^{[1
,2
,3
]}

机构：

[1] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada

[2] Univ Waterloo, Dept Phys, Waterloo, ON N2L 3G1, Canada

[3] Perimeter Inst Theoret Phys, Waterloo, ON N2J 2W9, Canada

[4] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

PHASE-TRANSITIONS; COMPUTATION;

D O I：

10.1103/PhysRevLett.107.010501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We employ a nuclear magnetic resonance (NMR) quantum information processor to simulate the ground state of an XXZ spin chain and measure its NMR analog of entanglement, or pseudoentanglement. The observed pseudoentanglement for a small-size system already displays a singularity, a signature which is qualitatively similar to that in the thermodynamical limit across quantum phase transitions, including an infinite-order critical point. The experimental results illustrate a successful approach to investigate quantum correlations in many-body systems using quantum simulators.

引用

页数：4

共 50 条

[21] Quantum many-body physics from a gravitational lens [J].

Liu, Hong ;

Sonner, Julian .

NATURE REVIEWS PHYSICS, 2020, 2 (11) :615-633

[22] Theory of Robust Quantum Many-Body Scars in Long-Range Interacting Systems [J].

Lerose, Alessio ;

Parolini, Tommaso ;

Fazio, Rosario ;

Abanin, Dmitry A. ;

Pappalardi, Silvia .

PHYSICAL REVIEW X, 2025, 15 (01)

[23] Certificates of quantum many-body properties assisted by machine learning [J].

Requena, Borja ;

Munoz-Gil, Gorka ;

Lewenstein, Maciej ;

Dunjko, Vedran ;

Tura, Jordi .

PHYSICAL REVIEW RESEARCH, 2023, 5 (01)

[24] Pauli spectrum and nonstabilizerness of typical quantum many-body states [J].

Turkeshi, Xhek ;

Dymarsky, Anatoly ;

Sierant, Piotr .

PHYSICAL REVIEW B, 2025, 111 (05)

[25] A monomial matrix formalism to describe quantum many-body states [J].

Van den Nest, Maarten .

NEW JOURNAL OF PHYSICS, 2011, 13

[26] Provably efficient machine learning for quantum many-body problems [J].

Huang, Hsin-Yuan ;

Kueng, Richard ;

Torlai, Giacomo ;

Albert, Victor V. ;

Preskill, John .

SCIENCE, 2022, 377 (6613) :1397-+

[27] Exploring many-body interactions through quantum Fisher information [J].

Cieslinski, Pawel ;

Kurzynski, Pawel ;

Sowinski, Tomasz ;

Klobus, Waldemar ;

Laskowski, Wieslaw .

PHYSICAL REVIEW A, 2024, 110 (01)

[28] Emergence of stationary many-body entanglement in driven-dissipative Rydberg lattice gases [J].

Lee, Sun Kyung ;

Cho, Jaeyoon ;

Choi, K. S. .

NEW JOURNAL OF PHYSICS, 2015, 17

[29] Continuous Phase Transition without Gap Closing in Non-Hermitian Quantum Many-Body Systems [J].

Matsumoto, Norifumi ;

Kawabata, Kohei ;

Ashida, Yuto ;

Furukawa, Shunsuke ;

Ueda, Masahito .

PHYSICAL REVIEW LETTERS, 2020, 125 (26)

[30] Classical and Quantum Signatures of Quantum Phase Transitions in a (Pseudo) Relativistic Many-Body System [J].

Nitsch, Maximilian ;

Geiger, Benjamin ;

Richter, Klaus ;

Urbina, Juan-Diego .

CONDENSED MATTER, 2020, 5 (02)

← 1 2 3 4 5 →