Abstract
We apply the renormalization group formalism, to integrate quantum fluctuations of quantum mechanical systems at zero and finite temperature. At zero temperature a nonperturbative renormalization group equation allows to compute the ground state energy whereas at finite temperature a variational renormalization group equation is proposed to compute the free energy.
- Received 7 November 2000
DOI:https://doi.org/10.1103/PhysRevE.64.046129
©2001 American Physical Society