23 citations · 72 across the 13 of their papers we have counts for
4 papers · 1 filter
Once more on the equivalence between quantum phase transition phenomena in radiation-matter and magnetic systems
J. G. Brankov, N. S. Tonchev, V. A. Zagrebnov
In answer to the replies of Reslen {\it et al} [arXiv: quant-ph/0507164 (2005)], and Liberti and Zaffino [arXiv:cond-mat/0507019, (2005)], we comment once more on the temperature-d…
The Casimir effect for the Bose-Gas in Slabs
Philippe A. Martin, Valentin Zagrebnov
We study the Casimir effect for the perfect Bose-gase in the slab geometry for various boundary conditions. We show that the grand canonical potential per unit area at the bulk cri…
Comment on equivalence between quantum phase transition phenomena in radiation-matter and magnetic systems
J. G. Brankov, N. S. Tonchev, V. A. Zagrebnov
In this Comment we show that the temperature-dependent effective Hamiltonian derived by Reslen {\it et al} [Europhys. Lett., {\bf 69} (2005) 8] or that one by Liberti and Zaffino […
Lower Spectral Branches of a Particle Coupled to a Bose Field
Nicolae Angelescu, Robert Minlos, Valentin Zagrebnov
The structure of the lower part (i.e. -away below the two-boson threshold) spectrum of Fröhlich's polaron Hamiltonian in the weak coupling regime is obtained in spatial dimensio…