Optimal cloning for finite distributions of coherent states

P. T. Cochrane; T. C. Ralph; A. Dolińska

doi:10.1103/PhysRevA.69.042313

Optimal cloning for finite distributions of coherent states

P. T. Cochrane^*, T. C. Ralph, A. Dolińska

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

The standard cloning limits for finite width Gaussian distributions of coherent states were described. The Gaussian quantum cloner maximized cloning fidelity for Gaussian distributions at particular level below unity gain. The measured maximum fidelity was observed to increase monotonically as function of distribution width. The relationship between optimal gain and state estimation was also described. The no-cloning limit for teleportation of coherent states changed in nontrivial way.

Original language	English
Article number	042313
Pages (from-to)	042313-1-042313-6
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	69
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevA.69.042313
Publication status	Published - Apr 2004

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10.1103/PhysRevA.69.042313

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title = "Optimal cloning for finite distributions of coherent states",

abstract = "The standard cloning limits for finite width Gaussian distributions of coherent states were described. The Gaussian quantum cloner maximized cloning fidelity for Gaussian distributions at particular level below unity gain. The measured maximum fidelity was observed to increase monotonically as function of distribution width. The relationship between optimal gain and state estimation was also described. The no-cloning limit for teleportation of coherent states changed in nontrivial way.",

author = "Cochrane, {P. T.} and Ralph, {T. C.} and A. Doli{\'n}ska",

year = "2004",

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AB - The standard cloning limits for finite width Gaussian distributions of coherent states were described. The Gaussian quantum cloner maximized cloning fidelity for Gaussian distributions at particular level below unity gain. The measured maximum fidelity was observed to increase monotonically as function of distribution width. The relationship between optimal gain and state estimation was also described. The no-cloning limit for teleportation of coherent states changed in nontrivial way.

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M3 - Article

SN - 1050-2947

VL - 69

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JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

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Optimal cloning for finite distributions of coherent states

Abstract

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