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Abstract: We find that the exponential operator V=expilamdaQ 1P 2+Q 2P 3+

.+Q {n-1}P {n}+Q {n}P 1, Q {i}, P {i} are respectively thecoordinate and momentum operators, is an n-mode squeezing operator whichengenders standard squeezing. By virtue of the technique of integration withinan ordered product of operators we derive V-s normally ordered expansion andobtain the n-mode squeezed vacuum states, its Wigner function is calculated byusing the Weyl ordering invariance under similar transformations.



Autor: Li-yun Hu, Hong-yi Fan

Fuente: https://arxiv.org/



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