One-Axis Twisting as a Method of Generating Many-Body Bell Correlations

被引：16

作者：

Plodzien, Marcin ^{[1
]}

Lewenstein, Maciej ^{[1
,2
]}

Witkowska, Emilia ^{[3
]}

Chwedenczuk, Jan ^{[4
]}

机构：

[1] Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Barcelona 08860, Spain

[2] ICREA, Passeig Lluis Companys 23, Barcelona 08010, Spain

[3] Inst Phys PAS, Aleja Lotnikow 32-46, PL-02668 Warsaw, Poland

[4] Univ Warsaw, Fac Phys, Ulica Pasteura 5, PL-02093 Warsaw, Poland

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 129卷 / 25期

关键词：

ENTANGLEMENT ENTROPY; QUANTUM; STATES; NOISE;

D O I：

10.1103/PhysRevLett.129.250402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that the one-axis twisting (OAT), a versatile method of creating nonclassical states of bosonic qubits, is a powerful source of many-body Bell correlations. We develop a fully analytical and universal treatment of the process, which allows us to identify the critical time at which the Bell correlations emerge and predict the depth of Bell correlations at all subsequent times. Our findings are illustrated with a highly nontrivial example of the OAT dynamics generated using the Bose-Hubbard model.

引用

页数：7

共 69 条

[1] The quantum technologies roadmap: a European community view [J].

Acin, Antonio ;

Bloch, Immanuel ;

Buhrman, Harry ;

Calarco, Tommaso ;

Eichler, Christopher ;

Eisert, Jens ;

Esteve, Daniel ;

Gisin, Nicolas ;

Glaser, Steffen J. ;

Jelezko, Fedor ;

Kuhr, Stefan ;

Lewenstein, Maciej ;

Riedel, Max F. ;

Schmidt, Piet O. ;

Thew, Rob ;

Wallraff, Andreas ;

Walmsley, Ian ;

Wilhelm, Frank K. .

NEW JOURNAL OF PHYSICS, 2018, 20

[2] Device-Independent Witnesses of Entanglement Depth from Two-Body Correlators [J].

Aloy, A. ;

Tura, J. ;

Baccari, F. ;

Acin, A. ;

Lewenstein, M. ;

Augusiak, R. .

PHYSICAL REVIEW LETTERS, 2019, 123 (10)

[3]

Baamara Y., ARXIV

[4] Bell correlation depth in many-body systems [J].

Baccari, F. ;

Tura, J. ;

Fadel, M. ;

Aloy, A. ;

Bancal, J-D ;

Sangouard, N. ;

Lewenstein, M. ;

Acin, A. ;

Augusiak, R. .

PHYSICAL REVIEW A, 2019, 100 (02)

[5]

Becher C., 2022, arXiv

[6] Probing Renyi entanglement entropy via randomized measurements [J].

Brydges, Tiff ;

Elben, Andreas ;

Jurcevic, Petar ;

Vermersch, Benoit ;

Maier, Christine ;

Lanyon, Ben P. ;

Zoller, Peter ;

Blatt, Rainer ;

Roos, Christian F. .

SCIENCE, 2019, 364 (6437) :260-+

[7] Unified criteria for multipartite quantum nonlocality [J].

Cavalcanti, E. G. ;

He, Q. Y. ;

Reid, M. D. ;

Wiseman, H. M. .

PHYSICAL REVIEW A, 2011, 84 (03)

[8] Bell inequalities for continuous-variable correlations [J].

Cavalcanti, E. G. ;

Foster, C. J. ;

Reid, M. D. ;

Drummond, P. D. .

PHYSICAL REVIEW LETTERS, 2007, 99 (21)

[9] Many-body Bell inequalities for bosonic qubits [J].

Chwedenczuk, Jan .

SCIPOST PHYSICS CORE, 2022, 5 (02)

[10] Robust spin squeezing from the tower of states of U(1)-symmetric spin Hamiltonians [J].

Comparin, Tommaso ;

Mezzacapo, Fabio ;

Roscilde, Tommaso .

PHYSICAL REVIEW A, 2022, 105 (02)

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