Generalization of the Davydov Ansatz by squeezing
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We propose an extension of the Davydov Ansatz employing displaced squeezed states in the oscillator Hilbert space. The Dirac-Frenkel variational principle is used to derive the modified equations for the variational parameters. First numerical studies of the dynamics of the spin-boson model with a single bosonic degree of freedom reveal an overall improvement of the results as compared to the standard Davydov Ansatz. (C) 2016 Elsevier B.V. All rights reserved.
Details
| Original language | English |
|---|---|
| Pages (from-to) | 99-107 |
| Number of pages | 9 |
| Journal | Chemical Physics |
| Volume | 481 |
| Publication status | Published - 20 Dec 2016 |
| Peer-reviewed | Yes |
External IDs
| Scopus | 84969211360 |
|---|---|
| WOS | 000389589700014 |
Keywords
Keywords
- Spin-boson model, Davydov Ansatz, Variational principle, Squeezed states, DYNAMICS, STATES