80 citations · 197 across the 5 of their papers we have counts for
5 papers
Fano-Hopfield model and photonic band gaps for an arbitrary atomic lattice
Mauro Antezza, Yvan Castin
We study the light dispersion relation in a periodic ensemble of atoms at fixed positions in the Fano-Hopfield model (the atomic dipole being modeled with harmonic oscillators). Co…
Ground state energy of the two-dimensional weakly interacting Bose gas: First correction beyond Bogoliubov theory
Christophe Mora, Yvan Castin
We consider the grand potential of a two-dimensional weakly interacting homogeneous Bose gas at zero temperature. Building on a number-conserving Bogoliubov method for a lattic…
Internal structure of a quantum soliton and classical excitations due to trap opening
Yvan Castin
We analytically solve two problems that may be useful in the context of the recent observation of matter wave bright solitons in a one-dimensional attractive atomic Bose gas. The f…
Basic theory tools for degenerate Fermi gases
Yvan Castin
This is an introductory lecture to the theory of degenerate Fermi gases, in the context of present experiments on atomic Fermi gases. In part one, some properties of the ideal Ferm…
Non-diffusive phase spreading of a Bose-Einstein condensate at finite temperature
Alice Sinatra, Yvan Castin, Emilia Witkowska
We show that the phase of a condensate in a finite temperature gas spreads linearly in time at long times rather than in a diffusive way. This result is supported by classical fiel…