IDEAL QUANTUM READING OF OPTICAL MEMORIES

被引：16

作者：

Dall'Arno, Michele ^{[1
,2
,3
]}

Bisio, Alessandro ^{[3
,4
]}

D'Ariano, Giacomo Mauro ^{[3
,4
]}

机构：

[1] Nagoya Univ, Grad Sch Informat Sci, Chikusa Ku, Nagoya, Aichi 4648601, Japan

[2] ICFO Inst Ciencies Foton, E-08860 Castelldefels, Barcelona, Spain

[3] Quit Grp, Dipartimento Fis, I-27100 Pavia, Italy

[4] Ist Nazl Fis Nucl, Grp 4, I-27100 Pavia, Italy

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2012年 / 10卷 / 08期

关键词：

Quantum reading; discrimination of optical devices; discrimination of beamsplitters;

D O I：

10.1142/S0219749912410109

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Quantum reading is the art of exploiting the quantum properties of light to retrieve classical information stored in an optical memory with low energy and high accuracy. Focusing on the ideal scenario where noise and loss are negligible, we review previous works on the optimal strategies for minimal-error retrieving of information (ambiguous quantum reading) and perfect but probabilistic retrieving of information (unambiguous quantum reading). The optimal strategies largely overcome the optimal coherent protocols (reminiscent of common CD readers), further allowing for perfect discrimination. Experimental proposals for optical implementations of optimal quantum reading are provided.

引用

页数：14

共 23 条

[1] Statistical distinguishability between unitary operations -: art. no. 177901
Acín, A
[J]. PHYSICAL REVIEW LETTERS, 2001, 87 (17)
[2] [Anonymous], ARXIVQUANTPH11084163
[3] Operational theory of homodyne detection
Banaszek, K
Wodkiewicz, K
[J]. PHYSICAL REVIEW A, 1997, 55 (04): : 3117 - 3123
[4] Tradeoff between energy and error in the discrimination of quantum-optical devices
Bisio, Alessandro
Dall'Arno, Michele
D'Ariano, Giacomo Mauro
[J]. PHYSICAL REVIEW A, 2011, 84 (01):
[5] Boyd S., 2004, CONVEX OPTIMIZATION, VFirst, DOI DOI 10.1017/CBO9780511804441
[6] D'Ariano GM, 2002, J OPT B-QUANTUM S O, V4, pS273, DOI 10.1088/1464-4266/4/4/304
[7] Experimental implementation of unambiguous quantum reading
Dall'Arno, Michele
Bisio, Alessandro
D'Ariano, Giacomo Mauro
Mikova, Martina
Jezek, Miroslav
Dusek, Miloslav
[J]. PHYSICAL REVIEW A, 2012, 85 (01):
[8] Entanglement is not necessary for perfect discrimination between unitary operations
Duan, Runyao
Feng, Yuan
Ying, Mingsheng
[J]. PHYSICAL REVIEW LETTERS, 2007, 98 (10)
[9] Helstrom C. W, 1976, Quantum Detection and Estimation Theory
[10] Quantum physics of simple optical instruments
Leonhardt, U
[J]. REPORTS ON PROGRESS IN PHYSICS, 2003, 66 (07) : 1207 - 1249

← 1 2 3 →