Witnessing Multipartite Entanglement by Detecting Asymmetry

被引：40

作者：

Girolami, Davide ^{[1
]}

Yadin, Benjamin ^{[1
]}

机构：

[1] Univ Oxford, Dept Atom & Laser Phys, Parks Rd, Oxford OX1 3PU, England

来源：

ENTROPY | 2017年 / 19卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

quantum information; quantum coherence; entanglement; quantum metrology; QUANTUM COHERENCE; STATES;

D O I：

10.3390/e19030124

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The characterization of quantum coherence in the context of quantum information theory and its interplay with quantum correlations is currently subject of intense study. Coherence in a Hamiltonian eigenbasis yields asymmetry, the ability of a quantum system to break a dynamical symmetry generated by the Hamiltonian. We here propose an experimental strategy to witness multipartite entanglement in many-body systems by evaluating the asymmetry with respect to an additive Hamiltonian. We test our scheme by simulating asymmetry and entanglement detection in a three-qubit Greenberger-Horne-Zeilinger (GHZ) diagonal state.

引用

页数：11

共 66 条

[21] Quantum Discord Determines the Interferometric Power of Quantum States [J].

Girolami, Davide ;

Souza, Alexandre M. ;

Giovannetti, Vittorio ;

Tufarelli, Tommaso ;

Filgueiras, Jefferson G. ;

Sarthour, Roberto S. ;

Soares-Pinto, Diogo O. ;

Oliveira, Ivan S. ;

Adesso, Gerardo .

PHYSICAL REVIEW LETTERS, 2014, 112 (21)

[22] Characterizing Nonclassical Correlations via Local Quantum Uncertainty [J].

Girolami, Davide ;

Tufarelli, Tommaso ;

Adesso, Gerardo .

PHYSICAL REVIEW LETTERS, 2013, 110 (24)

[23] THEORETICAL INSIGHTS ON MEASURING QUANTUM CORRELATIONS [J].

Girolami, Davide ;

Vasile, Ruggero ;

Adesso, Gerardo .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2013, 27 (1-3)

[24] The resource theory of quantum reference frames: manipulations and monotones [J].

Gour, Gilad ;

Spekkens, Robert W. .

NEW JOURNAL OF PHYSICS, 2008, 10

[25] Separability criteria for genuine multiparticle entanglement [J].

Guehne, Otfried ;

Seevinck, Michael .

NEW JOURNAL OF PHYSICS, 2010, 12

[26] Entanglement detection [J].

Guehne, Otfried ;

Toth, Geza .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2009, 474 (1-6) :1-75

[27]

Helstrom C. W., 1976, QUANTUM DETECTION ES

[28] A quantum measure of coherence and incompatibility [J].

Herbut, F .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2005, 38 (13) :2959-2974

[29] Detecting k-nonseparability via quantum Fisher information [J].

Hong, Yan ;

Luo, Shunlong ;

Song, Hongting .

PHYSICAL REVIEW A, 2015, 91 (04)

[30] (QUANTUMNESS IN THE CONTEXT OF) RESOURCE THEORIES [J].

Horodecki, Michal ;

Oppenheim, Jonathan .

INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2013, 27 (1-3)

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