Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Bañuls, M."'
Publikováno v:
Phys. Rev. Lett. 132, 050401 (2024)
The lattice Schwinger model (SM), the discrete version of QED in 1+1 dimensions, is a well-studied test bench for lattice gauge theories. Here we study the fractal properties of the SM. We reveal the self-similarity of the ground state, which allows
Externí odkaz:
http://arxiv.org/abs/2201.10220
Publikováno v:
Phys. Rev. A 101, 042114 (2020)
We analyze the dynamics of a spin 1/2 subsystem coupled to a spin chain. We simulate numerically the full quantum many-body system for various sets of parameters and initial states of the chain, and characterize the divisibility of the subsystem dyna
Externí odkaz:
http://arxiv.org/abs/1912.09151
Autor:
Bañuls, M. C., Blatt, R., Catani, J., Celi, A., Cirac, J. I., Dalmonte, M., Fallani, L., Jansen, K., Lewenstein, M., Montangero, S., Muschik, C. A., Reznik, B., Rico, E., Tagliacozzo, L., Van Acoleyen, K., Verstraete, F., Wiese, U. -J., Wingate, M., Zakrzewski, J., Zoller, P.
Lattice gauge theories, which originated from particle physics in the context of Quantum Chromodynamics (QCD), provide an important intellectual stimulus to further develop quantum information technologies. While one long-term goal is the reliable qu
Externí odkaz:
http://arxiv.org/abs/1911.00003
We introduce a variational ansatz based on Gaussian states for (1+1)-dimensional lattice gauge models. To this end we identify a set of unitary transformations which decouple the gauge degrees of freedom from the matter fields. Using our ansatz, we s
Externí odkaz:
http://arxiv.org/abs/1811.04899
Publikováno v:
Phys. Rev. D 98, 034505 (2018)
We introduce a method to investigate the static and dynamic properties of both Abelian and non-Abelian lattice gauge models in 1+1 dimensions. Specifically, we identify a set of transformations that disentangle different degrees of freedom, and apply
Externí odkaz:
http://arxiv.org/abs/1805.05190
Publikováno v:
Phys. Rev. B 96, 174201 (2017)
We characterize the information dynamics of strongly disordered systems using a combination of analytics, exact diagonalization, and matrix product operator simulations. More specifically, we study the spreading of quantum information in three differ
Externí odkaz:
http://arxiv.org/abs/1707.05051
The Schwinger model, or 1+1 dimensional QED, offers an interesting object of study, both at zero and non-zero temperature, because of its similarities to QCD. In this proceeding, we present the a full calculation of the temperature dependent chiral c
Externí odkaz:
http://arxiv.org/abs/1511.00794
Publikováno v:
Phys. Rev. D 92, 034519 (2015)
We demonstrate the suitability of tensor network techniques for describing the thermal evolution of lattice gauge theories. As a benchmark case, we have studied the temperature dependence of the chiral condensate in the Schwinger model, using matrix
Externí odkaz:
http://arxiv.org/abs/1505.00279
Publikováno v:
New J. Phys. 17 (2015) 013037
The recently proposed Wigner function for a particle in an infinite lattice [NJP 14, 103009 (2012)] is extended here to include an internal degree of freedom, as spin. The formalism is developed to account for dynamical processes, with or without dec
Externí odkaz:
http://arxiv.org/abs/1405.2944
Publikováno v:
JHEP 11 (2013) 158
We show the feasibility of tensor network solutions for lattice gauge theories in Hamiltonian formulation by applying matrix product states algorithms to the Schwinger model with zero and non-vanishing fermion mass. We introduce new techniques to com
Externí odkaz:
http://arxiv.org/abs/1305.3765