Entanglement for all quantum states

被引：28

作者：

de la Torre, A. C. ^{[1
]}

Goyeneche, D. ^{[1
]}

Leitao, L. ^{[1
]}

机构：

[1] Univ Nacl Mar del Plata, Dept Fis, CONICET, IFIMAR, RA-7600 Mar Del Plata, Argentina

来源：

EUROPEAN JOURNAL OF PHYSICS | 2010年 / 31卷 / 02期

关键词：

TENSOR PRODUCT STRUCTURES;

D O I：

10.1088/0143-0807/31/2/010

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

It is shown that a state that is factorizable in the Hilbert space corresponding to some choice of degrees of freedom becomes entangled for a different choice of degrees of freedom. Therefore, entanglement is not a special case but is ubiquitous in quantum systems. Simple examples are calculated and a general proof is provided. The physical relevance of the change of tensor product structure is mentioned.

引用

页码：325 / 332

页数：8

共 10 条

[1] Ballentine LE., 2014, Quantum Mechanics: A Modern Development
[2] De La Torre A. C., 1998, European Journal of Physics, V19, P563, DOI 10.1088/0143-0807/19/6/009
[3] CONTEXTUALITY IN QUANTUM-SYSTEMS
DELATORRE, AC
[J]. AMERICAN JOURNAL OF PHYSICS, 1994, 62 (09) : 808 - 812
[4] DELATORRE AC, 1991, FDN PHYS LETT, V2, P235
[5] BELL INEQUALITY HOLDS FOR ALL NON-PRODUCT STATES
GISIN, N
[J]. PHYSICS LETTERS A, 1991, 154 (5-6) : 201 - 202
[6] Tensor product structures, entanglement, and particle scattering
Harshman, N. L.
Wickramasekara, S.
[J]. OPEN SYSTEMS & INFORMATION DYNAMICS, 2007, 14 (03) : 341 - 351
[7] HARSHMAN NL, 2004, PHYS REV LETT, V92
[8] Schrodinger E., 1930, BERLINER BERICHTE, P296
[9] The hydrogen atom as an entangled electron-proton system
Tommasini, P
Timmermans, E
Piza, AFRD
[J]. AMERICAN JOURNAL OF PHYSICS, 1998, 66 (10) : 881 - 886
[10] Quantum tensor product structures are observable induced
Zanardi, P
Lidar, DA
Lloyd, S
[J]. PHYSICAL REVIEW LETTERS, 2004, 92 (06)

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