111 citations · 827 across the 22 of their papers we have counts for
9 papers · 1 filter
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…
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…
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…
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…