176 citations · 1.3k across the 53 of their papers we have counts for
10 papers · 1 filter
An asymmetry lower bound on fermionic non-Gaussianity
Filiberto Ares, Michele Mazzoni, Sara Murciano +3
Fermionic Gaussian states are a fundamental tool in many-body physics, faithfully representing non-interacting quantum systems and allowing for efficient numerical simulations. Giv…
Probing Entanglement and Symmetries in Random States Using a Superconducting Quantum Processor
Jia-Nan Yang, Lata Kh Joshi, Filiberto Ares +3
Quantum many-body systems display an extraordinary degree of complexity, yet many of their features are universal: they depend not on microscopic details, but on a few fundamental…
Symmetry breaking in chaotic many-body quantum systems at finite temperature
Angelo Russotto, Filiberto Ares, Pasquale Calabrese
Recent work has shown that the entanglement of finite-temperature eigenstates in chaotic quantum many-body local Hamiltonians can be accurately described by an ensemble of random s…
Measuring full counting statistics in a trapped-ion quantum simulator
Lata Kh Joshi, Filiberto Ares, Manoj K. Joshi +2
In quantum mechanics, the probability distribution function (PDF) and full counting statistics (FCS) play a fundamental role in characterizing the fluctuations of quantum observabl…
Observing the quantum Mpemba effect in quantum simulations
Lata Kh Joshi, Johannes Franke, Aniket Rath +9
The non-equilibrium physics of many-body quantum systems harbors various unconventional phenomena. In this study, we experimentally investigate one of the most puzzling of these ph…
Entanglement entropy in the Long-Range Kitaev chain
F. Ares, J. G. Esteve, F. Falceto +1
In this paper we complete the study on the asymptotic behaviour of the entanglement entropy for Kitaev chains with long range pairing. We discover that when the couplings decay wit…
Entanglement entropy and Möbius transformations for critical fermionic chains
F. Ares, J. G. Esteve, F. Falceto +1
Entanglement entropy may display a striking new symmetry under Möbius transformations. This symmetry was analysed in our previous work for the case of a non-critical (gapped) free…
Entanglement in fermionic chains with finite range coupling and broken symmetries
F. Ares, J. G. Esteve, F. Falceto +1
We obtain a formula for the determinant of a block Toeplitz matrix associated with a quadratic fermionic chain with complex coupling. Such couplings break reflection symmetry and/o…
Entanglement of several blocks in fermionic chains
F. Ares, J. G. Esteve, F. Falceto
In this paper we propose an expression for the entanglement entropy of several intervals in a stationary state of a free, translational invariant Hamiltonian in a fermionic chain.…
Excited state entanglement in homogeneous fermionic chains
F. Ares, J. G. Esteve, F. Falceto +1
We study the Renyi entanglement entropy of an interval in a periodic fermionic chain for a general eigenstate of a free, translational invariant Hamiltonian. In order to analytical…