Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1995-03-21
Annals Phys. 241 (1995) 496-506
Physics
High Energy Physics
High Energy Physics - Theory
to appear in Annals of Physics (N.Y.)
Scientific paper
We discuss the r\^ole of quantum deformation of Weyl-Heisenberg algebra in dissipative systems and finite temperature systems. We express the time evolution generator of the damped harmonic oscillator and the generator of thermal Bogolubov transformations in terms of operators of the quantum Weyl-Heisenberg algebra. The quantum parameter acts as a label for the unitarily inequivalent representations of the canonical commutation relations in which the space of the states splits in the infinite volume limit.
Iorio Alfredo
Vitiello Giuseppe
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