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The geometry of N = 2 Maxwell-Einstein supergravity and Jordan algebras
- M. Günaydin, G. Sierra, P. Townsend
- Mathematics, Physics
- 6 August 1984
Exceptional Supergravity Theories and the MAGIC Square
- M. Günaydin, G. Sierra, P. Townsend
- Mathematics, Physics
- 8 December 1983
Gauging the d = 5 Maxwell-Einstein Supergravity Theories: More on Jordan Algebras
- M. Günaydin, G. Sierra, P. Townsend
- Physics, Mathematics
- 1985
Quantum Groups in Two-Dimensional Physics
- César Gómez, M. Ruiz-Altaba, G. Sierra
- Physics
- 26 April 1996
Preface 1. S-matrices, spin chains and vertex models 2. The Yang-Baxter equation - a first look 3. Bethe ansatz - some examples 4. The eight-vertex model 5. Face models 6. Quantum groups -…
Supersymmetry in six dimensions
- P. Howe, G. Sierra, P. Townsend
- Physics
- 11 July 1983
Entanglement of excited states in critical spin chains
- M. Ibáñez Berganza, F. C. Alcaraz, G. Sierra
- Physics
- 26 September 2011
Rényi 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)…
Equivalence of the variational matrix product method and the density matrix renormalization group applied to spin chains
- J.Dukelsky, M. Martin-Delgado, T. Nishino, G. Sierra
- Physics
- 29 October 1997
We study the relationship between the Density Matrix Renormalization Group (DMRG) and the variational matrix product method (MPM). In the latter method one can also define a density matrix whose…
Entanglement of low-energy excitations in conformal field theory.
- F. C. Alcaraz, M. Ibáñez Berganza, G. Sierra
- PhysicsPhysical Review Letters
- 14 January 2011
It is shown that the nth Rényi entropy is related to a 2n-point correlator of primary fields in CFT and this result uncovers a new link between quantum information theory and CFT.
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…
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