Geodesic
Generalized Squeezed States and Multimode Factorization Formula
Matematičeskie zametki, Tome 92 (2012) no. 5, pp. 762-777.

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We consider the multimode generalization of the normally ordered factorization formula of squeezings. This formula allows us to establish relationships between various representations of squeezed states, to calculate partial traces, mean values, and variations. The main results are expressed in terms of the matrix representation of canonical transformations which is a convenient and numerically stable mathematical tool. Explicit representations are given for the inner product and the composition of generalized multimode squeezings. Explicitly solvable evolution problems are considered.
Keywords: squeezed state, normal ordered factorization, Schrödinger equation, canonical transformations. 
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A. M. Chebotarev; T. V. Tlyachev; A. A. Radionov. Generalized Squeezed States and Multimode Factorization Formula. Matematičeskie zametki, Tome 92 (2012) no. 5, pp. 762-777. http://geodesic.mathdoc.fr/item/MZM_2012_92_5_a10/

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