Variational calculation of effective classical potential at T≠0 to higher orders

1994/01/01 by H. Kleinert, H. Meyer, Hans‐Dieter Meyer · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #High-pressure geophysics and materials #Physics #Quantum electrodynamics #Quantum mechanics #Quantum, superfluid, helium dynamics #Statistical physics #hep-th

paper · pdf · doi:10.1016/0375-9601(94)90454-5

published as Phys.Lett. A184 (1994) 319 · PostScript, http://www.physik.fu-berlin.de/kleinert.html

openalex publication_date 1994/01/01 · arxiv created 1995/04/16 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Using the new variational approach proposed recently for a systematic improvement of the locally harmonic Feynman-Kleinert approximation to path integrals we calculate the partition function of the anharmonic oscillator for all temperatures and coupling strength with high accuracy.

Citations

• Effective classical partition functions

Cited by

• Smearing formula for higher-order effective classical potentials