Hidden entanglement in the presence of random telegraph dephasing noise

被引：35

作者：

D'Arrigo, Antonio ^{[1
,2
]}

Lo Franco, Rosario ^{[3
,4
,5
]}

Benenti, Giuliano ^{[6
,7
,8
]}

Paladino, Elisabetta ^{[1
,2
,5
]}

Falci, Giuseppe ^{[1
,2
,5
]}

机构：

[1] Univ Catania, Dipartimento Fis & Astron, I-95123 Catania, Italy

[2] Catania Univ, CNR, IMM, UOS, I-95123 Catania, Italy

[3] Univ Palermo, CNISM, I-90123 Palermo, Italy

[4] Univ Palermo, Dipartimento Fis, I-90123 Palermo, Italy

[5] CSFNSM, I-95123 Catania, Italy

[6] Univ Insubria, CNISM, I-22100 Como, Italy

[7] Univ Insubria, Ctr Nonlinear & Complex Syst, I-22100 Como, Italy

[8] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

来源：

PHYSICA SCRIPTA | 2013年 / T153卷

关键词：

DECOHERENCE;

D O I：

10.1088/0031-8949/2013/T153/014014

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Entanglement dynamics of two noninteracting qubits, locally affected by random telegraph noise at pure dephasing, exhibits revivals. These revivals are not due to the action of any nonlocal operation; thus their occurrence may appear paradoxical since entanglement is by definition a nonlocal resource. We show that a simple explanation of this phenomenon may be provided by using the (recently introduced) concept of hidden entanglement, which signals the presence of entanglement that may be recovered with the only help of local operations.

引用

页数：4

共 40 条

[1] Entanglement monogamy and entanglement evolution in multipartite systems [J].

Bai, Yan-Kui ;

Ye, Ming-Yong ;

Wang, Z. D. .

PHYSICAL REVIEW A, 2009, 80 (04)

[2] Non-Markovian effects on the dynamics of entanglement [J].

Bellomo, B. ;

Lo Franco, R. ;

Compagno, G. .

PHYSICAL REVIEW LETTERS, 2007, 99 (16)

[3] Entanglement dynamics of two independent qubits in environments with and without memory [J].

Bellomo, B. ;

Lo Franco, R. ;

Compagno, G. .

PHYSICAL REVIEW A, 2008, 77 (03)

[4]

Bellomo B, 2012, ARXIV12056419

[5]

Benenti G., 2007, PRINCIPLES QUANTUM C, VII

[6]

Bennett CH, 1996, PHYS REV A, V54, P3824, DOI 10.1103/PhysRevA.54.3824

[7]

Bylander J, 2011, NAT PHYS, V7, P565, DOI [10.1038/NPHYS1994, 10.1038/nphys1994]

[8]

Carmichael H., 1993, OPEN SYSTEMS APPROAC

[9] Optimal dynamical characterization of entanglement [J].

Carvalho, Andre R. R. ;

Busse, Marc ;

Brodier, Olivier ;

Viviescas, Carlos ;

Buchleitner, Andreas .

PHYSICAL REVIEW LETTERS, 2007, 98 (19)

[10] Superconducting qubit manipulated by fast pulses: experimental observation of distinct decoherence regimes [J].

Chiarello, F. ;

Paladino, E. ;

Castellano, M. G. ;

Cosmelli, C. ;

D'Arrigo, A. ;

Torrioli, G. ;

Falci, G. .

NEW JOURNAL OF PHYSICS, 2012, 14

← 1 2 3 4 →