Electron wave packets: Quantum statistics in path integral representation

Journal Article · Tue Jan 15 04:00:00 EST 2008 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1007/S11447-008-1002-7· OSTI ID:21075635

Fundamental relations between ensemble-averaged kinetic energy, pressure, and virial are obtained for quantum many-particle systems at finite temperatures. A path-integral method is developed for calculating kinetic energy for mixed (quantum-classical) systems. The method eliminates the problem of divergent variance. Path-integral Monte Carlo simulations are performed to validate the method as applied to single-electron and electron-pair wave packets, with exact treatment of exchange symmetry and spin states. Quantitative results are compared with corresponding characteristics calculated for point charges.

• OSTI ID: 21075635
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 1 Vol. 106; ISSN JTPHES; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPUTERIZED SIMULATION
ELECTRON PAIRS
ELECTRONS
KINETIC ENERGY
MONTE CARLO METHOD
PATH INTEGRALS
POINT CHARGE
QUANTUM MECHANICS
SPIN
STATISTICS
SYMMETRY
WAVE PACKETS