717 citations · 4.5k across the 117 of their papers we have counts for
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Kibble-Zurek Mechanism in the Ginzburg Regime: Numerical Experiment in the Ising Model
Jacek Dziarmaga
Kibble-Zurek mechanism is a theory of defect formation in a non-equilibrium continuous phase transition. So far the theory has been successfully tested by numerical simulations and…
Condensate Heating by Atomic Losses
Jacek Dziarmaga, Krzysztof Sacha
Atomic Bose-Einstein condensate is heated by atomic losses. Predicted depletion ranges from 1% for a uniform 3D condensate to around 10% for a quasi-1D condensate in a harmonic tra…
Images of the Dark Soliton in a Depleted Condensate
Jacek Dziarmaga, Zbyszek P. Karkuszewski, Krzysztof Sacha
The dark soliton created in a Bose-Einstein condensate becomes grey in course of time evolution because its notch fills up with depleted atoms. This is the result of quantum mechan…
The Bogoliubov Theory of a BEC in Particle Representation
Jacek Dziarmaga, Krzysztof Sacha
In the number-conserving Bogoliubov theory of BEC the Bogoliubov transformation between quasiparticles and particles is nonlinear. We invert this nonlinear transformation and give…
Greying of the Dark Soliton: Depletion in the Anomalous Mode of the Bogoliubov Theory
Jacek Dziarmaga, Krzysztof Sacha
Quantum depletion from an atomic quasi one dimensional Bose-Einstein condensate with a dark soliton is studied in a framework of the Bogoliubov theory. Depletion is dominated by an…
Continuous quantum measurement of a Bose-Einstein condensate: a stochastic Gross-Pitaevskii equation
Diego A. R. Dalvit, Jacek Dziarmaga, Roberto Onofrio
We analyze the dynamics of a Bose-Einstein condensate undergoing a continuous dispersive imaging by using a Lindblad operator formalism. Continuous strong measurements drive the co…