Self-trapping of polarons with off-diagonal coupling
A variational polaron wave function pioneered by Toyozawa is utilized to elucidate exciton-phonon correlations in a generalized Holstein Hamiltonian in the simultaneous presence of diagonal and off-diagonal exciton-phonon couplings. We show that a simple analysis of quantum entanglement between exci...
| मुख्य लेखकों: | , , |
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| अन्य लेखक: | |
| स्वरूप: | Journal Article |
| भाषा: | English |
| प्रकाशित: |
2011
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| विषय: | |
| ऑनलाइन पहुंच: | https://hdl.handle.net/10356/90492 http://hdl.handle.net/10220/6741 |
| सारांश: | A variational polaron wave function pioneered by Toyozawa is utilized to elucidate exciton-phonon correlations in a generalized Holstein Hamiltonian in the simultaneous presence of diagonal and off-diagonal exciton-phonon couplings. We show that a simple analysis of quantum entanglement between excitonic and phononic degrees of freedom allows one to effectively characterize both the small- and large-polaron regimes as well as the crossover in between. |
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