Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Sorba, Marianna"'
Autor:
Delfino, Gesualdo, Sorba, Marianna
Publikováno v:
Nucl. Phys. B 1005 (2024) 116587
We consider $d$-dimensional quantum systems which for positive times evolve with a time-independent Hamiltonian in a nonequilibrium state that we keep generic in order to account for arbitrary evolution at negative times. We show how the one-point fu
Externí odkaz:
http://arxiv.org/abs/2403.13477
Autor:
Delfino, Gesualdo, Sorba, Marianna
Publikováno v:
J. Phys. A: Math. Theor. 57 (2024) 085003
We consider the spontaneously broken regime of the $O(n)$ vector model in $d=n+1$ space-time dimensions, with boundary conditions enforcing the presence of a topological defect line. Comparing theory and finite size dependence of one-point functions
Externí odkaz:
http://arxiv.org/abs/2309.06206
Autor:
Delfino, Gesualdo, Sorba, Marianna
Publikováno v:
Nuclear Physics B 994 (2023) 116312
Determining the role of initial conditions in the late time evolution is a key issue for the theory of nonequilibrium dynamics of isolated quantum systems. Here we extend the theory of quantum quenches to the case in which before the quench the syste
Externí odkaz:
http://arxiv.org/abs/2304.02314
Autor:
Aarts, Gert, Aichelin, Joerg, Allton, Chris, Athenodorou, Andreas, Bachtis, Dimitrios, Bonanno, Claudio, Brambilla, Nora, Bratkovskaya, Elena, Bruno, Mattia, Caselle, Michele, Conti, Costanza, Contino, Roberto, Cosmai, Leonardo, Cuteri, Francesca, Del Debbio, Luigi, D'Elia, Massimo, Dimopoulos, Petros, Di Renzo, Francesco, Galatyuk, Tetyana, Guenther, Jana N., Houtz, Rachel, Karsch, Frithjof, Kotov, Andrey Yu., Lombardo, Maria Paola, Lucini, Biagio, Maio, Lorenzo, Panero, Marco, Pawlowski, Jan M., Pelissetto, Andrea, Philipsen, Owe, Rago, Antonio, Ratti, Claudia, Ryan, Sinéad M., Sannino, Francesco, Sasaki, Chihiro, Schicho, Philipp, Schmidt, Christian, Sharma, Sipaz, Soloveva, Olga, Sorba, Marianna, Wiese, Uwe-Jens
Publikováno v:
Prog. Part. Nucl. Phys. 133 (2023) 104070
Phase transitions in a non-perturbative regime can be studied by ab initio Lattice Field Theory methods. The status and future research directions for LFT investigations of Quantum Chromo-Dynamics under extreme conditions are reviewed, including prop
Externí odkaz:
http://arxiv.org/abs/2301.04382
Autor:
Delfino, Gesualdo, Sorba, Marianna
Publikováno v:
Nuclear Physics B 983 (2022) 115910
We study analytically the role of initial conditions in nonequilibrium quantum dynamics considering the one-dimensional ferromagnets in the regime of spontaneously broken symmetry. We analyze the expectation value of local operators for the infinite-
Externí odkaz:
http://arxiv.org/abs/2202.12608
Autor:
Caselle, Michele, Sorba, Marianna
We introduce a universal combination of susceptibility and correlation length in the 3D Ising model, depending both on temperature and external magnetic field. Starting from a parametric representation of the equation of state, we study its behaviour
Externí odkaz:
http://arxiv.org/abs/2111.13029
Autor:
Delfino, Gesualdo, Sorba, Marianna
Publikováno v:
Nuclear Physics B 974 (2022) 115643
We obtain analytical results for the time evolution of local observables in systems undergoing quantum quenches in $d$ spatial dimensions. For homogeneous systems we show that oscillations undamped in time occur when the state produced by the quench
Externí odkaz:
http://arxiv.org/abs/2107.13240
Publikováno v:
Nucl. Phys. B 967 (2021) 115396
We consider three-dimensional statistical systems at phase coexistence in the half-volume with boundary conditions leading to the presence of an interface. Working slightly below the critical temperature, where universal properties emerge, we show ho
Externí odkaz:
http://arxiv.org/abs/2103.05370
Autor:
Caselle, Michele, Sorba, Marianna
Publikováno v:
Phys. Rev. D 102, 014505 (2020)
We study the behaviour of a universal combination of susceptibility and correlation length in the Ising model in two and three dimensions, in presence of both magnetic and thermal perturbations, in the neighbourhood of the critical point. In three di
Externí odkaz:
http://arxiv.org/abs/2003.12332
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