General properties of a polaron in motion

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.54.12852· OSTI ID:389318

Kelin, W; Yi, W; Shaolong, W ^[1]

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1. Center for Fundamental Physics, University of Science and Technology of China, Hefei Anhui 230026, People`s Republic of (China)

A concise approach for static polarons is extended to study the dynamic polaron system having nonspherical symmetry. The general properties of moving polarons, such as the ground-state energy, the phonon number, the effective mass, and the density distribution of phonon momentum{emdash}studied as functions of the total polaron momentum and electron-phonon coupling strength{emdash}are calculated numerically in a wide range of intermediate coupling strengths. In particular, a modified Fr{umlt o}hlich Hamiltonian is derived for the problem of polaron momentum {ital Q}{ge}1. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 389318
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 18 Vol. 54; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COHERENT STATES
COUPLING CONSTANTS
EFFECTIVE MASS
ELECTRON-PHONON COUPLING
GROUND STATES
HAMILTONIANS
MOTION
PERTURBATION THEORY
POLARONS