Time-Dependent Gutzwiller Approximation: Interplay with Phonons
| Autor: | José Lorenzana, G. Seibold, J. Bünemann |
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| Rok vydání: | 2013 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics High-temperature superconductivity Correlations Condensed matter physics Hubbard model Phonon Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention symbols.namesake law High-temperature superconductors Quantum mechanics symbols Phonons Condensed Matter::Strongly Correlated Electrons Quadratic order Softening Lagrangian |
| Zdroj: | Journal of superconductivity and novel magnetism 27 (2014): 929–931. doi:10.1007/s10948-013-2412-0 info:cnr-pdr/source/autori:G. Seibold (1); J. Bünemann (1,2); J. Lorenzana (3)/titolo:Time-Dependent Gutzwiller Approximation: Interplay with Phonons/doi:10.1007%2Fs10948-013-2412-0/rivista:Journal of superconductivity and novel magnetism/anno:2014/pagina_da:929/pagina_a:931/intervallo_pagine:929–931/volume:27 |
| ISSN: | 1557-1947 1557-1939 |
| DOI: | 10.1007/s10948-013-2412-0 |
| Popis: | We discuss the interplay of phonons with electronic correlations in the small amplitude-limit of the time-dependent Gutzwiller approximation. In this approach the time-dependent Lagrangian for the Hubbard model can be computed with a Gutzwiller wave-function in infinite dimensions and subsequently expanded up to quadratic order in density and double occupancy fluctuations. The dynamics of the latter show a strong softening around the metal-insulator transition giving rise to an interesting interplay with phonons which couple to the hopping. |
| Databáze: | OpenAIRE |
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