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ID 18686
file
creator
Kobayashi, Takayoshi
Furusawa, Akira
abstract
It is shown that the quantum jumps in the photon number nˆ from zero to one or more photons induced by backaction evasion quantum nondemolition measurements of a quadrature component xˆ of the vacuum light field state are strongly correlated with the quadrature component measurement results. This correlation corresponds to the operator expectation value <xˆ nˆ xˆ > which is equal to one-fourth for the vacuum even though the photon number eigenvalue is zero. Quantum nondemolition measurements of a quadrature component can thus provide experimental evidence of the nonclassical operator ordering dependence of the correlations between photon number and field components in the vacuum state.
journal title
Physical Review A. Atomic, Molecular, and Optical Physics
volume
Volume 62
issue
Issue 1
start page
013806-1
end page
013806-7
date of issued
2000-06-13
publisher
American Physical Society
issn
1094-1622
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2000 American Physical Society.
relation url
department
Graduate School of Advanced Sciences of Matter