Secret quantum communication of a reference frame

被引：17

作者：

Chiribella, Giulio ^{[1
]}

Maccone, Lorenzo ^{[1
]}

Perinotti, Paolo ^{[1
]}

机构：

[1] Univ Pavia, Dipartimento A Volta, QUIT Quantum Informat Theory Grp, I-27100 Pavia, Italy

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.98.120501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose quantum-cryptographic protocols to secretly communicate a reference frame-unspeakable information in the sense it cannot be encoded into a string of bits. Two distant parties can secretly align their Cartesian axes by exchanging N spin-1/2 particles, achieving the optimal accuracy 1/N. A possible eavesdropper cannot gain any information without being detected.

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页数：4

相关论文

共 17 条

[1] Optimal encoding and decoding of a spin direction -: art. no. 052309 [J].

Bagan, E ;

Baig, M ;

Brey, A ;

Muñoz-Tapia, R ;

Tarrach, R .

PHYSICAL REVIEW A, 2001, 63 (05) :523091-523091

[2] Decoherence-full subsystems and the cryptographic power of a private shared reference frame [J].

Bartlett, SD ;

Rudolph, T ;

Spekkens, RW .

PHYSICAL REVIEW A, 2004, 70 (03) :032307-1

[3] Classical and quantum communication without a shared reference frame [J].

Bartlett, SD ;

Rudolph, T ;

Spekkens, RW .

PHYSICAL REVIEW LETTERS, 2003, 91 (02)

[4]

Bennett C. H., 1984, P IEEE INT C COMP SY, DOI DOI 10.1016/J.TCS.2014.05.025

[5] Robust quantum communication using a polarization-entangled photon pair [J].

Boileau, JC ;

Laflamme, R ;

Laforest, M ;

Myers, CR .

PHYSICAL REVIEW LETTERS, 2004, 93 (22)

[6] Quantum metrology - Size isn't everything [J].

Braunstein, SL .

NATURE, 2006, 440 (7084) :617-618

[7] Experimental quantum communication without a shared reference frame [J].

Chen, TY ;

Zhang, J ;

Boileau, JC ;

Jin, XM ;

Yang, B ;

Zhang, Q ;

Yang, T ;

Laflamme, R ;

Pan, JW .

PHYSICAL REVIEW LETTERS, 2006, 96 (15)

[8] Optimal estimation of group transformations using entanglement [J].

Chiribella, G ;

D'Ariano, GM ;

Sacchi, MF .

PHYSICAL REVIEW A, 2005, 72 (04)

[9] Efficient use of quantum resources for the transmission of a reference frame [J].

Chiribella, G ;

D'Ariano, GM ;

Perinotti, P ;

Sacchi, MF .

PHYSICAL REVIEW LETTERS, 2004, 93 (18) :180503-1

[10] Quantum gloves:: Quantum states that encode as much as possible chirality and nothing else -: art. no. 022304 [J].

Collins, D ;

Diósi, L ;

Gisin, N ;

Massar, S ;

Popescu, S .

PHYSICAL REVIEW A, 2005, 72 (02)