111 citations · 827 across the 22 of their papers we have counts for
10 papers · 1 filter
Generalized Higgs mechanism in long-range interacting quantum systems
Oriana K. Diessel, Sebastian Diehl, Nicolò Defenu +2
The physics of long-range interacting quantum systems is currently living through a renaissance driven by the fast progress in quantum simulators. In these systems many paradigms o…
Shape effects of localized losses in quantum wires: dissipative resonances and nonequilibrium universality
Thomas Müller, Marcel Gievers, Heinrich Fröml +2
We study the effects of the spacial structure of localized losses in weakly-interacting fermionic quantum wires. We show that multiple dissipative impurities give rise to resonant…
Emergent Kardar-Parisi-Zhang phase in quadratically driven condensates
Oriana K. Diessel, Sebastian Diehl, Alessio Chiocchetta
In bosonic gases at thermal equilibrium, an external quadratic drive can induce a Bose-Einstein condensation described by the Ising transition, as a consequence of the explicitly b…
Ultracold quantum wires with localized losses: many-body quantum Zeno effect
Heinrich Fröml, Christopher Muckel, Corinna Kollath +2
We study a one-dimensional system of interacting spinless fermions subject to a localized loss, where the interplay of gapless quantum fluctuations and particle interactions leads…
Fluctuation-Induced Quantum Zeno Effect
Heinrich Fröml, Alessio Chiocchetta, Corinna Kollath +1
An isolated quantum gas with a localized loss features a non-monotonic behavior of the particle loss rate as an incarnation of the quantum Zeno effect, as recently shown in experim…
Pseudo-thermalization in driven-dissipative non-Markovian open quantum systems
José Lebreuilly, Alessio Chiocchetta, Iacopo Carusotto
We investigate a `pseudo thermalization' effect, where an open quantum system coupled to several non-Markovian reservoirs presents an emergent thermal behaviour in spite of its cou…
Laser operation and Bose-Einstein condensation: analogies and differences
Alessio Chiocchetta, Andrea Gambassi, Iacopo Carusotto
After reviewing the interpretation of laser operation as a non-equilibrium Bose-Einstein condensation phase transition, we illustrate the novel features arising from the non-equili…
Short-time universal scaling in an isolated quantum system after a quench
Alessio Chiocchetta, Marco Tavora, Andrea Gambassi +1
Renormalization-group methods provide a viable approach for investigating the emergent collective behavior of classical and quantum statistical systems in both equilibrium and none…
A quantum Langevin model for non-equilibrium condensation
Alessio Chiocchetta, Iacopo Carusotto
We develop a quantum model for non-equilibrium Bose-Einstein condensation of photons and polaritons in planar microcavity devices. The model builds upon laser theory and includes t…
Non-equilibrium quasi-condensates in reduced dimensions
Alessio Chiocchetta, Iacopo Carusotto
We develop a generic phenomenological model to describe the fluctuations on top of a non-equilibrium Bose-Einstein condensate. Analytic expressions are obtained for the momentum di…