Field theory with coherent states for many-body problems with specified particle- and symmetry- quantum numbers Non-relativistic electrons in a central potential and an external magnetic field - Condensed Matter > Statistical MecReport as inadecuate




Field theory with coherent states for many-body problems with specified particle- and symmetry- quantum numbers Non-relativistic electrons in a central potential and an external magnetic field - Condensed Matter > Statistical Mec - Download this document for free, or read online. Document in PDF available to download.

Abstract: Coherent state path integrals are applied to a many-body problem fornon-relativistic electrons in a central potential and an external magneticfield; however, in comparison to previous coherent state path integrals, wedefinitely fix the symmetry quantum numbers to specific values with secondquantized field operators which are restricted by delta functions of a Diracidentity in a trace representation of anti-commuting coherent states. Weperform an anomalous doubling for the delta functions of the two-particle partsso that a Hubbard-Stratonovich transformation can be taken for correspondingself-energies with a coset decomposition. The given field theory can beextended to an ensemble average over the external magnetic field so that meaneigenvalue densities and eigenvalue correlations can be obtained.



Author: Bernhard Mieck

Source: https://arxiv.org/







Related documents