188 citations · 223 across the 9 of their papers we have counts for
6 papers · 1 filter
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…
Spin Environment Engineering for a Persistent Current Qubit
Jacek Dziarmaga
A persistent current qubit has two quantum states with opposite currents flowing in a superconducting loop. Their magnetic field couple to nuclear spins. The qubit state is not onl…
Decoherence and long-lived Schroedinger cats in BEC
Diego A. R. Dalvit, Jacek Dziarmaga, Wojciech H. Zurek
We consider quantum superposition states in Bose-Einstein condensates. A decoherence rate for the Schrödinger cat is calculated and shown to be a significant threat to this macrosc…
Cosmology in a Test Tube: Theory of Domain Walls Formation in Binary Fluids
Jacek Dziarmaga, Mariusz Sadzikowski
Formation of domain walls during a rapid phase transition in a quasi one dimensional Cahn-Hiliard equation describing binary fluids in a thin tube is studied. Density of kinks scal…
Density of hedgehogs just after a quench
Jacek Dziarmaga
Density of vortices and monopoles after a rapid pressure quench is predicted. Critical exponents are worked out in overdamped and underdamped limits.
Density of kinks just after a quench in an overdamped system
Jacek Dziarmaga
A quench in an overdamped one dimensional model is studied by analytical and numerical methods. For an infinite system or a finite system with free boundary conditions, the d…