523 citations · 1.6k across the 44 of their papers we have counts for
46 papers
Higher-order quantum bright solitons in Bose-Einstein condensates show truly quantum emergent behavior
Christoph Weiss, Lincoln D. Carr
When an interaction quench by a factor of four is applied to an attractive Bose-Einstein condensate, a higher-order quantum bright soliton exhibiting robust oscillations is predict…
Temperatures are not useful to characterise bright-soliton experiments for ultra-cold atoms
Christoph Weiss, Simon A. Gardiner, Bettina Gertjerenken
Contrary to many other translationally invariant one-dimensional models, the low-temperature phase for an attractively interacting one-dimensional Bose-gas (a quantum bright solito…
Finite-temperature phase transition in a homogeneous one-dimensional gas of attractive bosons
Christoph Weiss
In typical one-dimensional models the Mermin-Wagner theorem forbids long range order, thus preventing finite-temperature phase transitions. We find a finite-temperature phase trans…
Grand-canonical condensate fluctuations in weakly interacting Bose-Einstein condensates of light
Christoph Weiss, Jacques Tempere
Grand-canonical fluctuations of Bose-Einstein condensates of light are accessible to state-of-the-art experiments [J. Schmitt et al., Phys. Rev. Lett. 112, 030401 (2014).]. We phen…
Center-of-mass motion as a sensitive convergence test for variational multi-mode quantum dynamics
Jayson G. Cosme, Christoph Weiss, Joachim Brand
Multi-mode expansions in computational quantum dynamics promise convergence toward exact results upon increasing the number of modes. Convergence is difficult to ascertain in pract…
Superballistic center-of-mass motion in one-dimensional attractive Bose gases: Decoherence-induced Gaussian random walks in velocity space
Christoph Weiss, Simon L. Cornish, Simon A. Gardiner +1
We show that the spreading of the center-of-mass density of ultracold attractively interacting bosons can become superballistic in the presence of decoherence, via single-, two- an…