77 citations · 671 across the 49 of their papers we have counts for
3 papers · 1 filter
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…
Classification of zero-energy resonances by dissociation of Feshbach molecules
Thomas M. Hanna, Krzysztof Goral, Emilia Witkowska +1
We study the dissociation of Feshbach molecules by a magnetic field sweep across a zero-energy resonance. In the limit of an instantaneous magnetic field change, the distribution o…
From a nonlinear string to a weakly interacting Bose gas
Emilia Witkowska, Mariusz Gajda, Jan Mostowski
We investigate a real scalar field whose dynamics is governed by a nonlinear wave equation. We show that classical description can be applied to a quantum system of many interactin…