4 papers
Evaporative damping in open system theory of Bose-Einstein Condensates
Nils A. Krause, Ashton S. Bradley
We derive a new damping mechanism in the open quantum systems description of Bose-Einstein condensates. It stems from previously neglected terms in the derivation of the stochastic…
Equilibrium, Relaxation and Fluctuations in homogeneous Bose-Einstein Condensates: Linearized Classical Field Analysis
Nils A. Krause, Ashton S. Bradley
Open quantum systems theory is central to describing the dynamics and equilibration of dilute-gas Bose-Einstein condensates (BECs). We present an analysis of the linearized stochas…
Velocity correlations of vortices and rarefaction pulses in compressible planar quantum fluids
Ashton S. Bradley, Nils A. Krause
We present a quantitative analytical framework for calculating two-point velocity correlations in compressible quantum fluids, focusing on two key classes of superfluid excitations…
Observation of Jones-Roberts solitons in a paraxial quantum fluid of light
Myrann Baker-Rasooli, Tangui Aladjidi, Nils A. Krause +2
We investigate the formation and dynamics of Jones-Roberts solitons in a smoothly inhomogeneous quantum fluid. To do so, we create a superfluid of light using paraxial, near-resona…