Exploiting randomness in quantum information processing

Chiu Fan Lee, Neil F Johnson

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We consider how randomness can be made to play a useful role in quantum information processing - in particular, for decoherence control and the implementation of quantum algorithms. For a two-level system in which the decoherence channel is non-dissipative, we show that decoherence suppression is possible if memory is present in the channel. Random switching between two potentially harmful noise sources can then provide a source of stochastic control. Such random switching can also be used in an advantageous way for the implementation of quantum algorithms.

Original languageEnglish (US)
Pages (from-to)343-349
Number of pages7
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume301
Issue number5-6
DOIs
StatePublished - Sep 2 2002
Externally publishedYes

Fingerprint

retarding

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Exploiting randomness in quantum information processing. / Lee, Chiu Fan; Johnson, Neil F.

In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 301, No. 5-6, 02.09.2002, p. 343-349.

Research output: Contribution to journalArticle

@article{5d50c23de6374f759492db5aa214e62a,
title = "Exploiting randomness in quantum information processing",
abstract = "We consider how randomness can be made to play a useful role in quantum information processing - in particular, for decoherence control and the implementation of quantum algorithms. For a two-level system in which the decoherence channel is non-dissipative, we show that decoherence suppression is possible if memory is present in the channel. Random switching between two potentially harmful noise sources can then provide a source of stochastic control. Such random switching can also be used in an advantageous way for the implementation of quantum algorithms.",
author = "Lee, {Chiu Fan} and Johnson, {Neil F}",
year = "2002",
month = "9",
day = "2",
doi = "10.1016/S0375-9601(02)01088-5",
language = "English (US)",
volume = "301",
pages = "343--349",
journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",
issn = "0375-9601",
publisher = "Elsevier",
number = "5-6",

}

TY - JOUR

T1 - Exploiting randomness in quantum information processing

AU - Lee, Chiu Fan

AU - Johnson, Neil F

PY - 2002/9/2

Y1 - 2002/9/2

N2 - We consider how randomness can be made to play a useful role in quantum information processing - in particular, for decoherence control and the implementation of quantum algorithms. For a two-level system in which the decoherence channel is non-dissipative, we show that decoherence suppression is possible if memory is present in the channel. Random switching between two potentially harmful noise sources can then provide a source of stochastic control. Such random switching can also be used in an advantageous way for the implementation of quantum algorithms.

AB - We consider how randomness can be made to play a useful role in quantum information processing - in particular, for decoherence control and the implementation of quantum algorithms. For a two-level system in which the decoherence channel is non-dissipative, we show that decoherence suppression is possible if memory is present in the channel. Random switching between two potentially harmful noise sources can then provide a source of stochastic control. Such random switching can also be used in an advantageous way for the implementation of quantum algorithms.

UR - http://www.scopus.com/inward/record.url?scp=0037009798&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037009798&partnerID=8YFLogxK

U2 - 10.1016/S0375-9601(02)01088-5

DO - 10.1016/S0375-9601(02)01088-5

M3 - Article

AN - SCOPUS:0037009798

VL - 301

SP - 343

EP - 349

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

SN - 0375-9601

IS - 5-6

ER -