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Deformation quantization of linear dissipative systems | | V.G. Kupriyanov
; S.L. Lyakhovich
; A.A. Sharapov
; | | Date: |
5 May 2005 | | Subject: | quant-ph | | Abstract: | A simple pseudo-Hamiltonian formulation is proposed for the linear inhomogeneous systems of ODEs. In contrast to the usual Hamiltonian mechanics, our approach is based on the use of non-stationary Poisson brackets, i.e. corresponding Poisson tensor is allowed to explicitly depend on time. Starting from this pseudo-Hamiltonian formulation we develop a consistent deformation quantization procedure involving a non-stationary star-product $*_t$ and an ``extended’’ operator of time derivative $D_t=partial_t+...$, differentiating the $ast_t$-product. As in the usual case, the $ast_t$-algebra of physical observables is shown to admit an essentially unique (time dependent) trace functional $mathrm{Tr}_t$. Using these ingredients we construct a complete and fully consistent quantum-mechanical description for any linear dynamical system with or without dissipation. The general quantization method is exemplified by the models of damped oscillator and radiating point charge. | | Source: | arXiv, quant-ph/0505023 | | Services: | Forum | Review | PDF | Favorites | |
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