Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Coser, Andrea"'
Autor:
Mami, Ciro Antonio, Coser, Andrea, Medvet, Eric, Boudewijn, Alexander T. P., Volpe, Marco, Whitworth, Michael, Svara, Borut, Sgroi, Gabriele, Panfilo, Daniele, Saccani, Sebastiano
Synthetic data generation has recently gained widespread attention as a more reliable alternative to traditional data anonymization. The involved methods are originally developed for image synthesis. Hence, their application to the typically tabular
Externí odkaz:
http://arxiv.org/abs/2211.16889
Autor:
Coser, Andrea, Perez-Garcia, David
Publikováno v:
Quantum 3, 174 (2019)
We propose the following definition of topological quantum phases valid for mixed states: two states are in the same phase if there exists a time independent, fast and local Lindbladian evolution driving one state into the other. The underlying idea,
Externí odkaz:
http://arxiv.org/abs/1810.05092
Publikováno v:
J. Phys. A: Math. Theor. 50, 314001 (2017)
We construct a contour function for the entanglement entropies in generic harmonic lattices. In one spatial dimension, numerical analysis are performed by considering harmonic chains with either periodic or Dirichlet boundary conditions. In the massl
Externí odkaz:
http://arxiv.org/abs/1701.08427
Publikováno v:
J. Stat. Mech. (2016) 083102
We study the logarithmic negativity and the moments of the partial transpose in the ground state of a two dimensional massless harmonic square lattice with nearest neighbour interactions for various configurations of adjacent domains. At leading orde
Externí odkaz:
http://arxiv.org/abs/1604.02609
Publikováno v:
J. Stat. Mech. (2016) 053109
We reconsider the moments of the reduced density matrix of two disjoint intervals and of its partial transpose with respect to one interval for critical free fermionic lattice models. It is known that these matrices are sums of either two or four Gau
Externí odkaz:
http://arxiv.org/abs/1511.08328
Publikováno v:
J. Stat. Mech. (2016) 033116
We study the moments of the partial transpose of the reduced density matrix of two intervals for the free massless Dirac fermion. By means of a direct calculation based on coherent state path integral, we find an analytic form for these moments in te
Externí odkaz:
http://arxiv.org/abs/1508.00811
Publikováno v:
J. Stat. Mech. (2015) P08005
We consider the partial transpose of the spin reduced density matrix of two disjoint blocks in spin chains admitting a representation in terms of free fermions, such as XY chains. We exploit the solution of the model in terms of Majorana fermions and
Externí odkaz:
http://arxiv.org/abs/1503.09114
Publikováno v:
J. Stat. Mech. (2015) P06021
The entanglement entropy and the logarithmic negativity can be computed in quantum field theory through a method based on the replica limit. Performing these analytic continuations in some cases is beyond our current knowledge, even for simple models
Externí odkaz:
http://arxiv.org/abs/1501.04311
Publikováno v:
J. Stat. Mech. (2014) P12017
We study the time evolution of the logarithmic negativity after a global quantum quench. In a 1+1 dimensional conformal invariant field theory, we consider the negativity between two intervals which can be either adjacent or disjoint. We show that th
Externí odkaz:
http://arxiv.org/abs/1410.0900
Publikováno v:
J. Stat. Mech. (2014) P12010
We study the spectrum of Landau-Ginzburg theories in 1+1 dimensions using the truncated conformal space approach employing a compactified boson. We study these theories both in their broken and unbroken phases. We first demonstrate that we can reprod
Externí odkaz:
http://arxiv.org/abs/1409.1494