2 citations · 2 across the 4 of their papers we have counts for
8 papers
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…
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 […
Gibbs State Uniqueness for Anharmonic Quantum Crystal with a Nonpolynomial Double-Well Potential
Alexei L. Rebenko, Valentin A. Zagrebnov
We construct the Gibbs state for -dimensional quantum crystal with site displacements from , , and with a one-site \textit{non-polynomial} double-well potential,…
Bose-Einstein Condensation for Homogeneous Interacting Systems with a One-Particle Spectral Gap
J. Lauwers, A. Verbeure, V. A. Zagrebnov
We prove rigorously the occurrence of zero-mode Bose-Einstein condensation for a class of continuous homogeneous systems of boson particles with superstable interactions. This is t…
The equilibrium states for a model with two kinds of Bose condensation
Jean-Bernard Bru, Bruno Nachtergaele, Valentin Zagrebnov
We study the equilibrium Gibbs states for a Boson gas model, defined by Bru and Zagrebnov, which has two phase transitions of the Bose condensation type. The two phase transitions…
Anomalous electron trapping by localized magnetic fields
F. Bentosela, R. M. Cavalcanti, P. Exner +1
We consider an electron with an anomalous magnetic moment g>2 confined to a plane and interacting with a nonzero magnetic field B perpendicular to the plane. We show that if B has…