Quantum amplifiers, quantum duplicators and quantum cryptography

被引：90

作者：

Yuen, HP

机构：

[1] Dept. of Elec. Eng. and Comp. Sci., Northwestern University, Evanston

来源：

QUANTUM AND SEMICLASSICAL OPTICS | 1996年 / 8卷 / 04期

关键词：

D O I：

10.1088/1355-5111/8/4/015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Several methods for eavesdropping on the standard four coherent-state quantum cryptosystem together with a possible countermeasure are analysed and found to place a limit on the tolerable energy disadvantage of the users as compared to the eavesdropper. The possible significant role of the photon-number amplifier and the photon-number duplicator is indicated.

引用

页码：939 / 949

页数：11

共 20 条

[1]

[Anonymous], PHOTONS QUANTUM FLUC

[2]

Bennett C. H., 1992, Journal of Cryptology, V5, P3, DOI 10.1007/BF00191318

[3] QUANTUM CRYPTOGRAPHY USING ANY 2 NONORTHOGONAL STATES [J].

BENNETT, CH .

PHYSICAL REVIEW LETTERS, 1992, 68 (21) :3121-3124

[4]

BENNETT CH, 1992, SCI AM OCT, P50

[5] DETECTION OF THE DENSITY-MATRIX THROUGH OPTICAL HOMODYNE TOMOGRAPHY WITHOUT FILTERED BACK-PROJECTION [J].

DARIANO, GM ;

MACCHIAVELLO, C ;

PARIS, MGA .

PHYSICAL REVIEW A, 1994, 50 (05) :4298-4302

[6]

EKERT AK, 1994, PHYS REV A, V50, P4298

[7] QUANTUM CRYPTOGRAPHY WITH COHERENT STATES [J].

HUTTNER, B ;

IMOTO, N ;

GISIN, N ;

MOR, T .

PHYSICAL REVIEW A, 1995, 51 (03) :1863-1869

[8] THEORY OF NOISE ACCUMULATION IN LINEAR OPTICAL-AMPLIFIER CHAINS [J].

LOUDON, R .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1985, 21 (07) :766-773

[9] QUANTUM CRYPTOGRAPHY WITHOUT CONJUGATE CODING [J].

PHOENIX, SJD .

PHYSICAL REVIEW A, 1993, 48 (01) :96-102

[10] SECURE KEY DISTRIBUTION-SYSTEM BASED ON QUANTUM CRYPTOGRAPHY [J].

TOWNSEND, PD .

ELECTRONICS LETTERS, 1994, 30 (10) :809-811

← 1 2 →