Nondeterministic amplifier for two-photon superpositions

Jeffers, John (2010) Nondeterministic amplifier for two-photon superpositions. Physical Review A, 82 (6). 063828. ISSN 1094-1622

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Official URL: https://doi.org/10.1103/PhysRevA.82.063828

Abstract

We examine heralded nondeterministic noiseless amplification based on the quantum scissors device, which has been shown to increase the one-photon amplitude of a state at the expense of the vacuum-state amplitude. Here we propose using the same basic design to perform perfect amplification in a basis set of up to two photons. The device is much more efficient than several one-photon amplifiers working in tandem. When used to amplify coherent states this advantage is shown either using fidelity or in terms of probability of successful action, or more strikingly in a combination of the two.

Creators(s):	Jeffers, John ORCID: https://orcid.org/0000-0002-8573-1675;
Item type:	Article
ID code:	30219
Keywords:	optical-state truncation, quantum optics, differentiate, teleportation, noise, quantum scissors device, Physics, Atomic and Molecular Physics, and Optics
Subjects:	Science > Physics
Department:	Faculty of Science > Physics
Depositing user:	Pure Administrator
Date deposited:	17 Apr 2011 04:10
Last modified:	06 Jan 2021 08:51
Related URLs:	Scopus publication
URI:	https://strathprints.strath.ac.uk/id/eprint/30219
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