Renormalization Group at finite temperature in Quantum Mechanics

Details Renormalization Group at finite temperature in Quantum Mechanics Renormalization Group at finite temperature in Quantum Mechanics

2000-04-03

arxiv.org/abs/quant-ph/0004006v1

Phys. Lett. A 256 (1999) 125-131

Physics

Quantum Physics

10 pages

Scientific paper

10.1016/S0375-9601(99)00230-3

We establish the exact renormalization group equation for the potential of a
one quantum particle system at finite and zero temperature. As an example we
use it to compute the ground state energy of the anharmonic oscillator. We
comment on an improvement of the Feynman Kleinert's variational method by the
renormalization group.

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