Zobrazeno 1 - 10
of 362
pro vyhledávání: '"Russomanno P."'
Autor:
Salatino, Giulia, Passarelli, Gianluca, Russomanno, Angelo, Santoro, Giuseppe E., Lucignano, Procolo, Fazio, Rosario
We investigate the topological properties of the Su-Schrieffer-Heeger (SSH) model under dissipative dynamics using the quantum trajectory approach. Our study explores the preservation or breakdown of topological edge states, particularly focusing on
Externí odkaz:
http://arxiv.org/abs/2411.05671
Autor:
Scocco, Annarita, Passarelli, Gianluca, Collura, Mario, Lucignano, Procolo, Russomanno, Angelo
Publikováno v:
Physical Review B 110, 134204 (2024)
We investigate the robustness of the many-body localized (MBL) phase to the quantum-avalanche instability by studying the dynamics of a localized spin chain coupled to a $T=\infty$ thermal bath through its leftmost site. By analyzing local magnetizat
Externí odkaz:
http://arxiv.org/abs/2407.20985
We consider an infinite-range interacting quantum spin-1/2 model, undergoing periodic kicking and dissipatively coupled with an environment. In the thermodynamic limit, it is described by classical mean-field equations that can show regular and chaot
Externí odkaz:
http://arxiv.org/abs/2406.16585
Publikováno v:
Eur. Phys. J. B 97, 90 (2024)
We consider a free-fermion chain undergoing dephasing, described by two different random-measurement protocols (unravelings): a quantum-state-diffusion and a quantum-jump one. Both protocols keep the state in a Slater-determinant form, allowing to ad
Externí odkaz:
http://arxiv.org/abs/2402.06597
Publikováno v:
Physical Review B 109, 174310 (2024)
We propose a Floquet period-doubling time-crystal model based on a disordered interacting long-range spin chain where the periodic swapping of nearby spin couples is applied. This protocol can be applied to systems with any local spin magnitude $s$ {
Externí odkaz:
http://arxiv.org/abs/2312.17070
Publikováno v:
Physical Review B 109, 064504 (2024)
We study a superconducting Kitaev ring pierced by a magnetic flux, with and without disorder, in a quantum ring configuration, and in a rf-SQUID one, where a weak link is present. In the rf-SQUID configuration, in the topological phase, the supercurr
Externí odkaz:
http://arxiv.org/abs/2308.06170
Publikováno v:
Physical Review B, 108, 104313 (2023)
We study the asymptotic bipartite entanglement entropy of the quantum trajectories of a free-fermionic system, when subject to a continuous nonlocal monitoring. The measurements are described by Gaussian-preserving two-point operators, whose strength
Externí odkaz:
http://arxiv.org/abs/2307.05685
Autor:
Passarelli, Gianluca, Turkeshi, Xhek, Russomanno, Angelo, Lucignano, Procolo, Schirò, Marco, Fazio, Rosario
Publikováno v:
Phys. Rev. Lett. 132, 163401 (2024)
We study the properties of a monitored ensemble of atoms driven by a laser field and in the presence of collective decay. The properties of the quantum trajectories describing the atomic cloud drastically depend on the monitoring protocol and are dis
Externí odkaz:
http://arxiv.org/abs/2306.00841
Autor:
Russomanno, Angelo
Publikováno v:
Physical Review B 108, 094305 (2023)
In this work we consider the dynamics of a chain of many coupled kicked rotors with dissipation. We map a rich phase diagram with many dynamical regimes. We focus mainly on a regime where the system shows period doubling, and forms patterns that are
Externí odkaz:
http://arxiv.org/abs/2304.10927
Autor:
Rattacaso, Davide, Passarelli, Gianluca, Russomanno, Angelo, Lucignano, Procolo, Santoro, Giuseppe E., Fazio, Rosario
Publikováno v:
Phys. Rev. Lett. 132, 160401 (2024)
Finding a local Hamiltonian $\hat{\mathcal{H}}$ having a given many-body wavefunction $|\psi\rangle$ as its ground state, i.e. a parent Hamiltonian, is a challenge of fundamental importance in quantum technologies. Here we introduce a numerical metho
Externí odkaz:
http://arxiv.org/abs/2303.11200