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28 papers · 1 filter
Quantum Bäcklund Transformations: some ideas and examples
Orlando Ragnisco, Federico Zullo
In this work we give a mechanical (Hamiltonian) interpretation of the so called spectrality property introduced by Sklyanin and Kuznetsov in the context of Bäcklund transformations…
Automorphisms of quantum matrices
S. Launois, T. H. Lenagan
We study the automorphism group of the algebra $\oqmn$ of generic quantum matrices. We provide evidence for our conjecture that this group is generated by the transpos…
Quantum discord in a spin system with symmetry breaking
Bruno Tomasello, Davide Rossini, Alioscia Hamma +1
We analyze the quantum discord Q throughout the low-temperature phase diagram of the quantum XY model in transverse field. We first focus on the T=0 order-disorder quantum phase tr…
Rings of invariants for modular representations of elementary abelian p-groups
H. E. A. Campbell, R. J. Shank, D. L. Wehlau
We initiate a study of the rings of invariants of modular representations of elementary abelian p-groups. With a few notable exceptions, the modular representation theory of an ele…
Recursion operator of the Narita-Itoh-Bogoyavlensky lattice
Jing Ping Wang
We construct a recursion operator for the family of Narita-Itoh-Bogoyavlensky infinite lattice equations using its Lax presentation and present their mastersymmetries and bi-Hamilt…
VVV DR1: The First Data Release of the Milky Way Bulge and Southern Plane from the Near-Infrared ESO Public Survey VISTA Variables in the Via Lactea
R. K. Saito, M. Hempel, D. Minniti +107
The ESO Public Survey VISTA Variables in the Via Lactea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for…