Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Biella, Alberto"'
Autor:
Geier, Kevin T., Maki, Jeff, Biella, Alberto, Dalfovo, Franco, Giorgini, Stefano, Stringari, Sandro
Superfluidity describes the ability of quantum matter to flow without friction. Due to its fundamental role in many transport phenomena, it is crucial to understand the robustness of superfluid properties to external perturbations. Here, we theoretic
Externí odkaz:
http://arxiv.org/abs/2407.17558
Autor:
Minganti, Fabrizio, Biella, Alberto
This text is a short introduction to the physics of driven-dissipative many-body systems, focusing on a few selected topics. Beyond its more ``historical'' interest in the study of atomic physics and quantum optics, presently the modeling and studyin
Externí odkaz:
http://arxiv.org/abs/2407.16855
Quantum measurements profoundly influence system dynamics. They lead to complex nonequilibrium phenomena like the quantum Zeno effect, and they can be used for mitigating errors in quantum simulations. Such an ability is particularly valuable for lat
Externí odkaz:
http://arxiv.org/abs/2405.18504
We show that two-body losses induce a collective excitation in a harmonically trapped one-dimensional Bose gas, even in the absence of a quench in the trap or any other external perturbation. Focusing on the dissipatively fermionized regime, we perfo
Externí odkaz:
http://arxiv.org/abs/2402.05824
Publikováno v:
SciPost Phys. 15, 152 (2023)
In this work we characterize the false vacuum decay in the ferromagnetic quantum Ising chain with a weak longitudinal field subject to continuous monitoring of the local magnetization. Initializing the system in a metastable state, the false vacuum,
Externí odkaz:
http://arxiv.org/abs/2306.01067
Publikováno v:
Quantum 7, 1170 (2023)
We investigate and characterize the emergence of finite-component dissipative phase transitions (DPTs) in nonlinear photon resonators subject to $n$-photon driving and dissipation. Exploiting a semiclassical approach, we derive general results on the
Externí odkaz:
http://arxiv.org/abs/2303.03355
Publikováno v:
Phys. Rev. A 107, 013303 (2023)
We study an interacting one-dimensional gas of spin-1/2 fermions with two-body losses. The dynamical phase diagram that characterises the approach to the stationary state displays a wide quantum-Zeno region, identified by a peculiar behaviour of the
Externí odkaz:
http://arxiv.org/abs/2206.06837
Publikováno v:
Laser & Photonics Reviews, 2200377 (2022)
Despite the enormous technological interest in micro and nanolasers, surprisingly, no class-B quantum density-matrix model is available to date, capable of accurately describing coherence and photon correlations within a unified theory. In class-B la
Externí odkaz:
http://arxiv.org/abs/2205.13473
Publikováno v:
Phys. Rev. A 105, L051302 (2022)
We study the quantum dynamics of a one-dimensional SU(3)-symmetric system of cold atoms in the presence of two-body losses. We exploit the representation theory of SU(3), the so-called eightfold way, as a scheme to organize the dark states of the dis
Externí odkaz:
http://arxiv.org/abs/2201.12889
Autor:
Comparin, Tommaso, Opler, Alvin, Macaluso, Elia, Biella, Alberto, Polychronakos, Alexios P., Mazza, Leonardo
Publikováno v:
Phys. Rev. B 105, 085125 (2022)
We study the spin of the localised quasiparticle excitations of lowest-Landau-level quantum Hall states defined on a disk. The spin that we propose satisfies the spin-statistics relation and can be used to reconstruct the topological geometric phase
Externí odkaz:
http://arxiv.org/abs/2112.02901