Abstract
The SU(2) coherent state path integral is used to investigate the partition function of the Holstein dimer. This approach naturally takes into account the dynamical symmetry of the model. The ground-state energy and the number of the phonons are calculated as functions of the parameters of the Hamiltonian. The renormalizations of the phonon frequency and electron hopping for bonding and antibonding states are considered. The destruction of quasiclassical mean field solution is discussed.
| Original language | English |
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| Pages (from-to) | 927-930 |
| Number of pages | 4 |
| Journal | Acta Physica Polonica A |
| Volume | 97 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2000 |
| Externally published | Yes |
| Event | The European Conference on Physics of Magnetism '99 - Poznan, Poland Duration: 21 Jun 1999 → 25 Jun 1999 |