Semiclassical expansion of Wigner functions
Journal Article
·
· Journal of Mathematical Physics
- Dipartimento di Matematica, Universita di Roma 'La Sapienza', P.le Aldo Moro 2, 00185 Rome (Italy)
We show that the time evolved Wigner function of a quantum particle under the action of a smooth potential can be formally expanded in powers of ({Dirac_h}/2{pi}), where each term of the expansion can be computed in terms of the corresponding classical flow. Moreover the solution can be approximated by the N-order truncation with an error O(({Dirac_h}/2{pi}){sup N+1})
- OSTI ID:
- 20768773
- Journal Information:
- Journal of Mathematical Physics, Vol. 47, Issue 5; Other Information: DOI: 10.1063/1.2200143; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0022-2488
- Country of Publication:
- United States
- Language:
- English
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