Abstract
The concept of coherent states for arbitrary Lie group is suggested as a tool for explicitly obtaining an integral representation of the partition function, whenever the Hamiltonian has a dynamical group. Two examples are thoroughly discussed: the case of the nilpotent group of Weyl related to a generic many-body problem with two-body interactions, and the case of\(\mathop \Pi \limits_{k^ \otimes }\) SU(1, 1)(κ) relevant for a superfluid system.
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Rasetti, M. Coherent states and partition function. Int J Theor Phys 14, 1–21 (1975). https://doi.org/10.1007/BF01807988
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DOI: https://doi.org/10.1007/BF01807988