Condensed Matter Systems with Variable Many‐Body Interactions

N. E. Bickers

Arno Böhm, Ali Mostafazadeh, Hiroyasu Koizumi +2 more

XinGuo REN, Xiaohui Liu, Minye Zhang +11 more

Jing Chen, Jie Yang, Lu Zhang

By means of similarity transformation, this paper proposes the matter-wave soliton solutions and dynamics of the variable coefficient cubic-quintic nonlinear Schrödinger equation arising from Bose-Einstein condensates with time-dependent two- and three-body interactions. It is found that, under the effect of time-dependent two- and three-body interaction and harmonic potential with time-dependent frequency, the density of atom condensates will gradually diminish and finally collapse.

Jaime Merino, A. Levy Yeyati

Marcello Porta, Vieri Mastropietro, Alessandro Giuliani

We discuss rigorous results about the response functions of gapped and gapless interacting fermionic lattice models, relevant for the study of transport in condensed matter physics.