Entanglement of several blocks in fermionic chains
arXiv:1406.1668 · doi:10.1103/PhysRevA.90.062321
Abstract
In this paper we propose an expression for the entanglement entropy of several intervals in a stationary state of a free, translational invariant Hamiltonian in a fermionic chain. We check numerically the accuracy of our proposal and conjecture a new formula for the asymptotic behaviour of principal sub-matrices of a Toeplitz matrix.
arXiv comment20 pages, 6 figures
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- A duality principle for the multi-block entanglement entropy of free fermion systems
- Entanglement negativity in a nonequilibrium steady state
- Inhomogeneous XX spin chains and quasi-exactly solvable models
- Entanglement entropy of the long-range Dyson hierarchical model
- On the Möbius transformation in the entanglement entropy of fermionic chains
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- Rényi entanglement entropies for the compactified massless boson with open boundary conditions
- Symmetry resolution of the computable cross-norm negativity of two disjoint intervals in the massless Dirac field theory
- Entanglement entropy of two disjoint intervals separated by one spin in a chain of free fermion
- Entanglement entropy and Möbius transformations for critical fermionic chains
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