3 citations · 3 across the 3 of their papers we have counts for
3 papers
quant-ph2019
A field-theoretical approach to non-relativistic QED
Ladislaus Alexander Banyai, Mircea Bundaru
We give here a field-theoretical derivation of the Hamiltonian of the non-relativistic quantum electrodynamics in the Coulomb gauge using the Lagrange formalism. It leads to the sa…
cond-mat.stat-mech2004
Linear Response in the s.c. Bogolyubov model of Bose-Einstein Condensation
L. Banyai, M. A. Bundaru, P. Gartner
We discuss the linear response of the Bogolyubov theory of a weakly interacting Bose gas below the critical temperature. The specific aspects, due to induced perturbation terms in…
cond-mat2003★ 3 cited
Quasi-classical Approach to Bose Condensation in a Finite Potential Well
L. Banyai, A. M. Bundaru, H. Haug
We treat the problem of self-consistently interacting bosons in the presence of a finite (but macroscopic) potential well within a quasi-classical approximation for the normal comp…