111 citations · 827 across the 22 of their papers we have counts for
23 papers
Quantum wires with local particle loss: Transport manifestations of fluctuation-induced effects
Marcel Gievers, Thomas Müller, Heinrich Fröml +2
We investigate the transport properties of a quantum wire of weakly interacting fermions in the presence of local particle loss. We calculate current and conductance in this system…
Kardar-Parisi-Zhang universality in the linewidth of non-equilibrium 1D quasi-condensates
Ivan Amelio, Alessio Chiocchetta, Iacopo Carusotto
We investigate the finite-size origin of the emission linewidth of a spatially-extended, one-dimensional non-equilibrium condensate. We show that the well-known Schawlow-Townes sca…
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…
Universal amplitudes ratios for critical aging via functional renormalization group
Michele Vodret, Alessio Chiocchetta, Andrea Gambassi
We discuss how to calculate non-equilibrium universal amplitude ratios in the functional renormalization group approach, extending its applicability. In particular, we focus on the…
Excitonic Tonks-Girardeau and charge-density wave phases in monolayer semiconductors
Rafał Ołdziejewski, Alessio Chiocchetta, Johannes Knörzer +1
Excitons in two-dimensional semiconductors provide a novel platform for fundamental studies of many-body interactions. In particular, dipolar interactions between spatially indirec…
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…
A Luttinger Liquid coupled to Ohmic-class environments
Andisheh Khedri, Antonio Štrkalj, Alessio Chiocchetta +1
We investigate the impact of an Ohmic-class environment on the conduction and correlation properties of one-dimensional interacting systems. Interestingly, we reveal that inter-par…
Cavity-induced quantum spin liquids
Alessio Chiocchetta, Dominik Kiese, Carl Philipp Zelle +2
Quantum spin liquids provide paradigmatic examples of highly entangled quantum states of matter. Frustration is the key mechanism to favor spin liquids over more conventional magne…
Nonequilibrium quasistationary spin disordered state in the Kitaev-Heisenberg magnet -RuCl
R. B. Versteeg, A. Chiocchetta, F. Sekiguchi +9
Excitation by light pulses enables the manipulation of phases of quantum condensed matter. Here, we photoexcite high-energy holon-doublon pairs as a way to alter the magnetic free…
Universal late-time dynamics in isolated one-dimensional statistical systems with topological excitations
Alvise Bastianello, Alessio Chiocchetta, Leticia F. Cugliandolo +1
We investigate the non-equilibrium dynamics of a class of isolated one-dimensional systems possessing two degenerate ground states, initialized in a low-energy symmetric phase. We…
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…
Dynamical crossovers in prethermal critical states
Alessio Chiocchetta, Andrea Gambassi, Sebastian Diehl +1
We study the prethermal dynamics of an interacting quantum field theory with a N-component order parameter and symmetry, suddenly quenched in the vicinity of a dynamical cri…
Universal short-time dynamics: boundary functional renormalization group for a temperature quench
Alessio Chiocchetta, Andrea Gambassi, Sebastian Diehl +1
We present a method to calculate short-time non-equilibrium universal exponents within the functional renormalization-group scheme. As an example, we consider the classical critica…
Short-time universal scaling and light-cone dynamics after a quench in an isolated quantum system in spatial dimensions
Alessio Chiocchetta, Marco Tavora, Andrea Gambassi +1
We investigate the effects of fluctuations on the dynamics of an isolated quantum system represented by a field theory with symmetry after a quench in spatial di…
Aging and coarsening in isolated quantum systems after a quench: exact results for the quantum model with
Anna Maraga, Alessio Chiocchetta, Aditi Mitra +1
The non-equilibrium dynamics of an isolated quantum system after a sudden quench to a dynamical critical point is expected to be characterized by scaling and universal exponents du…
Thermodynamic Equilibrium as a Symmetry of the Schwinger-Keldysh Action
L. M. Sieberer, A. Chiocchetta, A. Gambassi +2
The time evolution of an extended quantum system can be theoretically described in terms of the Schwinger-Keldysh functional integral formalism, whose action conveniently encodes t…
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…