P Calabrese, J Cardy, E Tonni - Journal of Physics A …, 2014 - iopscience.iop.org
We consider the logarithmic negativity of a finite interval embedded in an infinite one dimensional system at finite temperature. We focus on conformal invariant systems and we …
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 …
We investigate the logarithmic negativity in strongly disordered spin chains in the random- singlet phase. We focus on the spin-1 2 random Heisenberg chain and the random XX …
We study the scaling of the traces of the integer powers of the partially transposed reduced density matrix $\mathrm {Tr}({\rho} _ {A}^{{T} _ {2}})^{n} $ and of the entanglement negativity …
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 …
Topological order comes in different forms, and its classification and detection is an important field of modern research. In this work, we show that the Disconnected …
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 a coherent …
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 …
We propose a variational approach for computing the macroscopic entanglement in a many- body mixed state, based on entanglement witness operators, and compute the …