Hiding bits in Bell states

被引：207

作者：

Terhal, BM ^{[1
]}

DiVincenzo, DP ^{[1
]}

Leung, DW ^{[1
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 25期

关键词：

All Open Access; Green;

D O I：

10.1103/PhysRevLett.86.5807

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a scheme for hiding bits in Bell states that is secure even when the sharers, Alice and Bob, are allowed to carry out local quantum operations and classical communication. We prove that the information that Alice and Bob can gain about a hidden bit is exponentially small in n, the number of qubits in each share, and can be made arbitrarily small for hiding multiple bits. We indicate an alternative efficient low-entanglement method for preparing the shared quantum states. We discuss how our scheme can be implemented using present-day quantum optics.

引用

页码：5807 / 5810

页数：4

共 18 条

[11] Mixed-state entanglement and distillation: Is there a "bound" entanglement in nature? [J].

Horodecki, M ;

Horodecki, P ;

Horodecki, R .

PHYSICAL REVIEW LETTERS, 1998, 80 (24) :5239-5242

[12] A scheme for efficient quantum computation with linear optics [J].

Knill, E ;

Laflamme, R ;

Milburn, GJ .

NATURE, 2001, 409 (6816) :46-52

[13] Dense coding in experimental quantum communication [J].

Mattle, K ;

Weinfurter, H ;

Kwiat, PG ;

Zeilinger, A .

PHYSICAL REVIEW LETTERS, 1996, 76 (25) :4656-4659

[14] Separability criterion for density matrices [J].

Peres, A .

PHYSICAL REVIEW LETTERS, 1996, 77 (08) :1413-1415

[15] Rigorous treatment of distillable entanglement [J].

Rains, EM .

PHYSICAL REVIEW A, 1999, 60 (01) :173-178

[16]

Vollbrecht K.G.H., QUANTPH0010095

[17] Local distinguishability of multipartite orthogonal quantum states [J].

Walgate, J ;

Short, AJ ;

Hardy, L ;

Vedral, V .

PHYSICAL REVIEW LETTERS, 2000, 85 (23) :4972-4975

[18] QUANTUM STATES WITH EINSTEIN-PODOLSKY-ROSEN CORRELATIONS ADMITTING A HIDDEN-VARIABLE MODEL [J].

WERNER, RF .

PHYSICAL REVIEW A, 1989, 40 (08) :4277-4281

← 1 2 →