Journal
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Volume 55, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1751-8121/ac3947
Keywords
polaron; effective mass; Landau-Pekar equations
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Funding
- European Union's Horizon 2020 research and innovation programme under the ERC [694227]
- European Union's Horizon 2020 research and innovation programme under Marie Skodowska-Curie Grant [754411]
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We provide a definition of effective mass for the classical polaron based on a novel variational principle that minimizes the energy functional over states with given velocity. The resulting formula for the effective mass agrees with the prediction by Landau-Pekar equations.
We provide a definition of the effective mass for the classical polaron described by the Landau-Pekar (LP) equations. It is based on a novel variational principle, minimizing the energy functional over states with given (initial) velocity. The resulting formula for the polaron's effective mass agrees with the prediction by LP (1948 J. Exp. Theor. Phys. 18 419-423).
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