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Entanglement of excited states in critical spin chains

- M. I. Berganza, F. C. Alcaraz, G. Sierra
- Physics
- 26 September 2011

R?nyi and von Neumann entropies quantifying the amount of entanglement in ground states of critical spin chains are known to satisfy a universal law which is given by the conformal field theory (CFT)… Expand

Entanglement of low-energy excitations in conformal field theory.

- F. C. Alcaraz, Miguel Ibáñez Berganza, G. Sierra
- Physics, MedicinePhysical review letters
- 14 January 2011

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Equipartition of the entanglement entropy

- J. Xavier, F. C. Alcaraz, G. Sierra
- PhysicsPhysical Review B
- 17 April 2018

The entanglement in a quantum system that possess an internal symmetry, characterized by the Sz-magnetization or U(1)-charge, is distributed among different sectors. The aim of this letter is to gain… Expand

Surface exponents of the quantum XXZ, Ashkin-Teller and Potts models

- F. C. Alcaraz, M. N. Barber, M. Batchelor, R. Baxter, G. Quispel
- Physics
- 21 December 1987

Eigenspectra of the critical quantum Ashkin-Teller and Potts chains with free boundaries can be obtained from that of the XXZ chain with free boundaries and a complex surface field. By deriving and… Expand

LETTER TO THE EDITOR: Interpolation between Hubbard and supersymmetric t-J models: two-parameter integrable models of correlated electrons

- F. C. Alcaraz, R. Z. Bariev
- Physics
- 18 August 1999

Two new one-dimensional fermionic models depending on two independent parameters are formulated and solved exactly by the Bethe ansatz method. These models connect continuously the integrable Hubbard… Expand

The HeisenbergXXZ Hamiltonian with Dzyaloshinsky-Moriya interactions

- F. C. Alcaraz, W. Wreszinski
- Physics
- 1990

The quantum Heisenberg chain with Dzyaloshinsky-Moriya interactions is solved by relating it to theXXZ Hamiltonian with a certain type of boundary conditions. Several properties of the ground state… Expand

Finite-size corrections of the Entanglement Entropy of critical quantum chains

- J. Xavier, F. C. Alcaraz
- Physics
- 28 November 2011

Using the density matrix renormalization group, we calculated the finite-size corrections of the entanglement $\alpha$-Renyi entropy of a single interval for several critical quantum chains. We… Expand

Exact solution of the asymmetric exclusion model with particles of arbitrary size.

- F. C. Alcaraz, R. Z. Bariev
- Mathematics, PhysicsPhysical review. E, Statistical physics, plasmas…
- 9 April 1999

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Universal behavior of the Shannon mutual information of critical quantum chains.

- F. C. Alcaraz, M. Rajabpour
- Physics, MedicinePhysical review letters
- 6 May 2013

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