Simulation of quantum random walks using the interference of a classical field

被引：80

作者：

Jeong, H ^{[1
]}

Paternostro, M ^{[1
]}

Kim, MS ^{[1
]}

机构：

[1] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.69.012310

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We suggest a theoretical scheme for the simulation of quantum random walks on a line using beam splitters, phase shifters, and photodetectors. Our model enables us to simulate a quantum random walk using of the wave nature of classical light fields. Furthermore, the proposed setup allows the analysis of the effects of decoherence. The transition from a pure mean-photon-number distribution to a classical one is studied varying the decoherence parameters.

引用

页数：7

共 24 条

[1]

AHARANOV D, P 33 STOC ASS COMP M

[2]

AMBAINIS A, 2001, P 33 STOC ASS COMP M

[3] Optical Galton board [J].

Bouwmeester, D ;

Marzoli, I ;

Karman, GP ;

Schleich, W ;

Woerdman, JP .

PHYSICAL REVIEW A, 2000, 61 (01) :9

[4] Quantum random walks with decoherent coins [J].

Brun, TA ;

Carteret, HA ;

Ambainis, A .

PHYSICAL REVIEW A, 2003, 67 (03) :9

[5] Quantum search by measurement [J].

Childs, AM ;

Deotto, E ;

Farhi, E ;

Goldstone, J ;

Gutmann, S ;

Landahl, AJ .

PHYSICAL REVIEW A, 2002, 66 (03) :323141-323148

[6]

DANA RA, 2002, FINANCIAL MARKETS CO

[7] Quantum walks in optical lattices -: art. no. 052319 [J].

Dür, W ;

Raussendorf, R ;

Kendon, VM ;

Briegel, HJ .

PHYSICAL REVIEW A, 2002, 66 (05) :8

[8]

HAAKE F, 1992, QUANTUM SIGNATURE CH

[9] Quantum walks based on an interferometric analogy [J].

Hillery, M ;

Bergou, J ;

Feldman, E .

PHYSICAL REVIEW A, 2003, 68 (03) :10

[10]

JERRUM M, 2001, UNPUB P 33 ACM S THE

← 1 2 3 →