Zobrazeno 1 - 10
of 36 289
pro vyhledávání: '"Fock space"'
Autor:
Roy, Sthitadhi, Logan, David E.
This article reviews recent progress in understanding the physics of many-body localisation (MBL) in disordered and interacting quantum many-body systems, from the perspective of ergodicity breaking on the associated Fock space. This approach to MBL
Externí odkaz:
http://arxiv.org/abs/2408.12685
Autor:
Claeys, Pieter W., De Tomasi, Giuseppe
The chaotic dynamics of quantum many-body systems are expected to quickly randomize any structured initial state, delocalizing it in Fock space. In this work, we study the spreading of an initial product state in Hilbert space under dual-unitary dyna
Externí odkaz:
http://arxiv.org/abs/2408.02732
An efficient approach to calculate approximate pure-state and transition reduced density matrices in the framework of the multireference relativistic Fock-space coupled cluster (FS CC) theory is proposed. The method is based on the effective operator
Externí odkaz:
http://arxiv.org/abs/2408.12546
We implement the Fock-space perturbed relativistic coupled-cluster theory to compute the electric dipole polarizability of ground and low lying excited states, and nuclear spin-dependent parity violating transition amplitudes in Cs. Moreover, to chec
Externí odkaz:
http://arxiv.org/abs/2408.04356
Autor:
Ghosh, Mainak
The operator space generated by peripheral eigenvectors of a unital normal completely positive map $P$ on a von Neumann algebra has a C*-algebra structure. This C*-algebra is known as the \textit{peripheral Poisson boundary} of $P$. For a separable H
Externí odkaz:
http://arxiv.org/abs/2406.11167
Characterizing the nature of many-body localization transitions (MBLTs) and their potential critical behaviors has remained a challenging problem. In this work, we study the dynamics of the displacement, quantifying the spread of the radial probabili
Externí odkaz:
http://arxiv.org/abs/2405.18188
Autor:
Fulsche, Robert
In this short note, we discuss essential positivity of Toeplitz operators on the Fock space, as motivated by a recent question of Per\"al\"a and Virtanen. We give a proper characterization of essential positivity in terms of limit operators. A conjec
Externí odkaz:
http://arxiv.org/abs/2405.15496
Autor:
Huang, Yi C., Zhang, Jian-Yang
In this paper we extend Galbis' elegant norm bounds for self-adjoint Toeplitz operators on the Fock space to bounded and integrable symbols which are non-radial. The main ingredients are a transplantation of the remarkable Nicola-Tilli isoperimetric
Externí odkaz:
http://arxiv.org/abs/2405.11147