23 citations · 81 across the 11 of their papers we have counts for
11 papers
Enhancing entanglement asymmetry in fragmented quantum systems
Lorenzo Gotta, Filiberto Ares, Sara Murciano
Entanglement asymmetry provides a quantitative measure of symmetry breaking in many-body quantum states. Focusing on inhomogeneous charges, such as dipole and multipole mome…
Towers of quantum many-body scars under stochastic resetting
Lorenzo Gotta, Manas Kulkarni, Gabriele Perfetto
Towers of quantum many-body scars are sets of highly-excited eigenstates of nonintegrable Hamiltonians whose dynamics shows athermal behavior and persistent oscillations in time. T…
Open-system quantum many-body scars: a theory
Lorenzo Gotta
In this work, we undertake the problem of formally introducing a notion of quantum many-body scarring in open quantum systems governed by the Lindblad equation. To this goal, we re…
Exceptional stationary state in a dephasing many-body open quantum system
Alice Marché, Gianluca Morettini, Leonardo Mazza +2
We study a dephasing many-body open quantum system that hosts, together with the infinite-temperature state, another additional stationary state. The latter is exceptional in many…
Dirac Impurity in a Luttinger liquid
Lorenzo Gotta, Thierry Giamarchi
We consider a linearly-dispersing quantum impurity interacting through a contact density-density term with a one-dimensional (1D) superfluid described by the Tomonaga-Luttinger liq…
Asymptotic Quantum Many-Body Scars
Lorenzo Gotta, Sanjay Moudgalya, Leonardo Mazza
We consider a quantum lattice spin model featuring exact quasiparticle towers of eigenstates with low entanglement at finite size, known as quantum many-body scars (QMBS). We show…
Exact many-body scars based on pairs or multimers in a chain of spinless fermions
Lorenzo Gotta, Leonardo Mazza, Pascal Simon +1
We construct a 1D model Hamiltonian of spinless fermions for which the spinless analogue of -pairing states are quantum many-body scars of the model. These states are excited st…
Kinetic formation of trimers in a spinless fermionic chain
Lorenzo Gotta, Leonardo Mazza, Pascal Simon +1
We show the stabilization of two trimer phases in a chain of spinless fermions with a correlated hopping term. A trimer fluid forms due to a gain in trimer kinetic energy and compe…
Two-fluid coexistence and phase separation in a one dimensional model with pair hopping and density interactions
Lorenzo Gotta, Leonardo Mazza, Pascal Simon +1
We compute the phase diagram of a one-dimensional model of spinless fermions with pair-hopping and nearest-neighbor interaction, first introduced by Ruhman and Altman, using the de…
Two-fluid coexistence in a spinless fermions chain with pair hopping
Lorenzo Gotta, Leonardo Mazza, Pascal Simon +1
We show that a simple one-dimensional model of spinless fermions with pair hopping displays a phase in which a Luttinger liquid of paired fermions coexists with a Luttinger liquid…
Pairing in spin chains and spinless fermions with next-nearest neighbour interactions
Lorenzo Gotta, Leonardo Mazza, Pascal Simon +1
We investigate the phase diagrams of a one-dimensional lattice model of fermions and of a spin chain with interactions extending up to next-nearest neighbour range. In particular,…