Citation
Rf. Bishop et al., Variational results for the Rabi Hamiltonian, PHYS LETT A, 254(3-4), 1999, pp. 215-224
Citations number
9
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
03759601
→ ACNP
Volume
254
Issue
3-4
Year of publication
1999
Pages
215 - 224
Database
ISI
SICI code
0375-9601(19990412)254:3-4<215:VRFTRH>2.0.ZU;2-V
Abstract
We present simple two- and three-parameter variational calculations for the
Rabi Hamiltonian. The importance of symmetry in the ansatze is stressed. T
he numerical results indicate that our ansatze provide accurate approximati
ons both to the groundstate energy and wavefunction and to the first excite
d state if the two-boson energy significantly exceeds the level splitting.
(C) 1999 Elsevier Science B.V.