Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Fabrizio Minganti"'
Publikováno v:
SciPost Physics, Vol 17, Iss 1, p 027 (2024)
The vacuum (i.e., the ground state) of a system in ultrastrong light-matter coupling contains particles that cannot be emitted without any dynamical perturbation and is thus called virtual. We propose a protocol for inducing and observing real mechan
Externí odkaz:
https://doaj.org/article/badac094d0fc4881a68e754d0cc29fce
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Nontrivial spectral properties of non-Hermitian systems can lead to intriguing effects with no counterparts in Hermitian systems. For instance, in a two-mode photonic system, by dynamically winding around an exceptional point (EP) a controll
Externí odkaz:
https://doaj.org/article/c6821ba6964943ef9e5f2cf39ed6186d
Publikováno v:
Quantum, Vol 7, p 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:
https://doaj.org/article/848794ced91c429e903d699b556ac3de
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043092 (2023)
Finite simplex lattice models are used in different branches of science, e.g., in condensed-matter physics, when studying frustrated magnetic systems and non-Hermitian localization phenomena; or in chemistry, when describing experiments with mixtures
Externí odkaz:
https://doaj.org/article/9799f474106244dd81ab2dd206c30b50
Publikováno v:
PRX Quantum, Vol 4, Iss 2, p 020337 (2023)
Encoding quantum information onto bosonic systems is a promising route to quantum error correction. In a cat code, this encoding relies on the confinement of the dynamics of the system onto the two-dimensional manifold spanned by Schrödinger cats of
Externí odkaz:
https://doaj.org/article/f653012b0c2848c4b5e77e318bdaf294
Autor:
Chia-Yi Ju, Adam Miranowicz, Fabrizio Minganti, Chuan-Tsung Chan, Guang-Yin Chen, Franco Nori
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023070 (2022)
The formalism for non-Hermitian quantum systems sometimes blurs the underlying physics. We present a systematic study of the vielbeinlike formalism which transforms the Hilbert space bundles of non-Hermitian systems into the conventional ones, render
Externí odkaz:
https://doaj.org/article/e296f0b3858746ca859e39943ef22b24
Autor:
Fabrizio Minganti, Dolf Huybrechts
Publikováno v:
Quantum, Vol 6, p 649 (2022)
The characterization of open quantum systems is a central and recurring problem for the development of quantum technologies. For time-independent systems, an (often unique) steady state describes the average physics once all the transient processes h
Externí odkaz:
https://doaj.org/article/012b05e44c3a4043be3451543f40bd41
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043197 (2021)
Phase transitions of thermal systems and the laser threshold were first connected more than forty years ago. Despite the nonequilibrium nature of the laser, the Landau theory of thermal phase transitions, applied directly to the Scully-Lamb laser mod
Externí odkaz:
https://doaj.org/article/aa83f67fb08c4bb68efa7c900d875f79
Publikováno v:
New Journal of Physics, Vol 23, Iss 12, p 122001 (2021)
The paradigm of second-order phase transitions (PTs) induced by spontaneous symmetry breaking (SSB) in thermal and quantum systems is a pillar of modern physics that has been fruitfully applied to out-of-equilibrium open quantum systems. Dissipative
Externí odkaz:
https://doaj.org/article/213ce5105822431a87781b69f383dc0f
Autor:
Ievgen I. Arkhipov, Fabrizio Minganti
Publikováno v:
Physical Review A. 107
Phase transitions in non-Hermitian systems are at the focus of cutting edge theoretical and experimental research. On the one hand, parity-time- ($\cal PT$-) and anti-$\cal PT$-symmetric physics have gained ever-growing interest, due to the existence