Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Antonello, Scardicchio"'
Publikováno v:
SciPost Physics, Vol 17, Iss 1, p 004 (2024)
Quantum sensors can show unprecedented sensitivities, provided they are controlled in a very specific, optimal way. Here, we consider a spin sensor of time-varying fields in the presence of dephasing noise, and we show that the problem of finding the
Externí odkaz:
https://doaj.org/article/6f0bc6ea1c5145d5b5ab8c4571b94bbe
Publikováno v:
SciPost Physics, Vol 15, Iss 2, p 045 (2023)
We perform a thorough and complete analysis of the Anderson localization transition on several models of random graphs with regular and random connectivity. The unprecedented precision and abundance of our exact diagonalization data (both spectra and
Externí odkaz:
https://doaj.org/article/6bda747b4d5240808f1ef920ce804582
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043015 (2021)
We study both classical and quantum algorithms to solve a hard optimization problem, namely 3-XORSAT on 3-regular random graphs. By introducing a new quasi-greedy algorithm that is not allowed to jump over large energy barriers, we show that the prob
Externí odkaz:
https://doaj.org/article/6193f61285d34fccbc761a4ae19bb732
Publikováno v:
Physical Review B. 107
The melting of the corner of a crystal is a classical, real-world, non-equilibrium statistical mechanics problem which has shown several connections with other branches of physics and mathematics. For a perfect, classical crystal in two and three dim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb309e17975e4829291eb2ec62437f09
https://doi.org/10.1103/physrevb.107.024201
https://doi.org/10.1103/physrevb.107.024201
Autor:
Ivan V. Protopopov, Rajat K. Panda, Tommaso Parolini, Antonello Scardicchio, Eugene Demler, Dmitry A. Abanin
Publikováno v:
Physical Review X, Vol 10, Iss 1, p 011025 (2020)
Previous studies reveal a crucial effect of symmetries on the properties of a single particle moving in a disorder potential. More recently, a phenomenon of many-body localization (MBL) has been attracting much theoretical and experimental interest.
Externí odkaz:
https://doaj.org/article/c00d189dc26f4fd58669f56442acf9c3
Publikováno v:
Physical Review Letters. 129
We study the non-equilibrium evolution of coexisting ferromagnetic domains in the two-dimensional quantum Ising model -- a setup relevant in several contexts, from quantum nucleation dynamics and false-vacuum decay scenarios to recent experiments wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f047c1db1cf731f26a31f83010e66883
https://doi.org/10.1103/physrevlett.129.120601
https://doi.org/10.1103/physrevlett.129.120601
We study many-body localization (MBL) transition in disordered Floquet systems using a polynomially filtered exact diagonalization (POLFED) algorithm. We focus on disordered kicked Ising model and quantitatively demonstrate that finite size effects a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e996fe93057bbbc58bf24bcb4139d5a9
In a recent paper [Phys. Rev. Lett. 129, 120601] we have shown that the dynamics of interfaces, in the symmetry-broken phase of the two-dimensional ferromagnetic quantum Ising model, displays a robust form of ergodicity breaking. In this paper, we el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5935e9f818be3ff4685f111fa35c3918
Autor:
Antonello Scardicchio, Santiago Hernandez-Gomez, Federico Balducci, Giovanni Fasiolo, Paola Cappellaro, Nicole Fabbri
Quantum sensors can show unprecedented sensitivities, provided they are controlled in a very specific, optimal way. Here, we consider a spin sensor of time-varying fields in the presence of dephasing noise, and we show that the problem of finding the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e16a6936a13a3bed7b02e6bf3e1269e4
http://arxiv.org/abs/2112.14998
http://arxiv.org/abs/2112.14998
Autor:
Jakub Zakrzewski, Piotr Sierant, Marcello Dalmonte, Eduardo Gonzalez Lazo, Antonello Scardicchio
Publikováno v:
Physical Review Letters
We study the impact of quenched disorder on the dynamics of locally constrained quantum spin chains, that describe 1D arrays of Rydberg atoms in both frozen (Ising-type) and dressed (XY-type) regime. Performing large-scale numerical experiments, we o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::214524af47c20ee8df8f025737428197
https://doi.org/10.1103/physrevlett.127.126603
https://doi.org/10.1103/physrevlett.127.126603