Affordable Access

deepdyve-link
Publisher Website

Experimentally realizable quantum comparison of coherent states and its applications

Authors
  • Andersson, Erika
  • Curty, Marcos
  • Jex, Igor
Type
Published Article
Publication Date
Aug 15, 2006
Submission Date
Jan 19, 2006
Identifiers
DOI: 10.1103/PhysRevA.74.022304
arXiv ID: quant-ph/0601130
Source
arXiv
License
Unknown
External links

Abstract

When comparing quantum states to each other, it is possible to obtain an unambiguous answer, indicating that the states are definitely different, already after a single measurement. In this paper we investigate comparison of coherent states, which is the simplest example of quantum state comparison for continuous variables. The method we present has a high success probability, and is experimentally feasible to realize as the only required components are beam splitters and photon detectors. An easily realizable method for quantum state comparison could be important for real applications. As examples of such applications we present a "lock and key" scheme and a simple scheme for quantum public key distribution.

Report this publication

Statistics

Seen <100 times