arXiv subjects

Benarous Mohamed

Publications and source records attributed to Benarous Mohamed.

2 recordsLinked to original sources

arXiv2023

Generalized stability conditions for binary bose mixtures

Considering both interspecies and intraspecies fluctuations in ultracold bose-bose mixtures, we derive generalized stability conditions against collapse and phase separation. Furthermore, by examining the energy density of the system, we show that new LHY-like effects may enforce or destroy the stability according to the excitation branch, therefore, permitting or prohibiting the existence of droplet states.

quant-ph↗

arXiv2013

Anomalous Effects in a Trapped Bose-Einstein Condensate

We study the anomalous density in an ultra-cold trapped bose gas in a variational framework, for both zero and finite temperature. We show that it is finite in 1D, while it is logarithmically and linearly divergent in 2D and 3D. The renormalization that we adopt is more reliable and compatible with the variational scheme. The main outcome is that the anomalous and non condensate densities are of the

cond-mat.quant-gas↗