Physics – Quantum Physics
Scientific paper
2000-04-03
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.
Gosselin Pierre
Grosdidier B.
Mohrbach Herve
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