Volume 85, Number 6, March 2009
|Number of page(s)||5|
|Published online||11 March 2009|
New n-mode squeezing operator and squeezed states with standard squeezing
College of Physics & Communication Electronics, Jiangxi Normal University - Nanchang 330022, China
2 Department of Physics, Shanghai Jiao Tong University - Shanghai 200030, China
Accepted: 24 February 2009
We find that the exponential operator , Qi, Pi are, respectively, the coordinate and momentum operators, is an n-mode squeezing operator which engenders standard squeezing. By virtue of the technique of integration within an ordered product of operators we derive V's normally ordered expansion and obtain the n-mode squeezed vacuum states, its Wigner function is calculated by using the Weyl ordering invariance under similar transformations.
PACS: 03.65.-w – Quantum mechanics / 42.50.-p – Quantum optics
© EPLA, 2009
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