398 citations · 883 across the 17 of their papers we have counts for
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Quantum bistability in the hyperfine ground state of atoms
B. Gábor, D. Nagy, A. Vukics +1
First order phase transitions are ubiquitous in nature, however, this notion is ambiguous and highly debated in the case of quantum systems out of thermal equilibrium. We construct…
Ground state bistability of cold atoms in a cavity
B. Gábor, D. Nagy, A. Dombi +5
We experimentally demonstrate an optical bistability between two hyperfine atomic ground states, using a single mode of an optical resonator in the collective strong coupling regim…
Time-resolved observation of a dynamical phase transition of atoms in a cavity
T. W. Clark, A. Dombi, F. I. B. Williams +5
The transparence of a laser-driven optical resonator containing an ensemble of cold atoms can have two distinct, robust states. Atoms in their initially prepared pure state blockad…
Nonequilibrium polariton dynamics in a Bose-Einstein condensate coupled to an optical cavity
Gábor Kónya, Dávid Nagy, Gergely Szirmai +1
We study quasiparticle scattering effects on the dynamics of a homogeneous Bose-Einstein condensate of ultracold atoms coupled to a single mode of an optical cavity. The relevant e…
Critical exponent of quantum phase transitions driven by colored noise
D. Nagy, P. Domokos
We demonstrate that criticality in a driven-dissipative system is strongly influenced by the spectral properties of the reservoir. We study the open-system realization of the Dicke…
The Open-System Dicke-Model Quantum Phase Transition with a Sub-Ohmic Bath
D. Nagy, P. Domokos
We show that the critical exponent of a quantum phase transition in a damped-driven open system is determined by the spectral density function of the reservoir. We consider the ope…