39 citations · 239 across the 12 of their papers we have counts for
12 papers
noise and integrable systems
J. C. Barba, F. Finkel, A. Gonzalez-Lopez +1
An innovative test for detecting quantum chaos based on the analysis of the spectral fluctuations regarded as a time series has been recently proposed. According to this test, the…
An exactly solvable supersymmetric spin chain of BC_N type
J. C. Barba, F. Finkel, A. Gonzalez-Lopez +1
We construct a new exactly solvable supersymmetric spin chain related to the BC_N extended root system, which includes as a particular case the BC_N version of the Polychronakos-Fr…
A novel quasi-exactly solvable spin chain with nearest-neighbors interactions
A. Enciso, F. Finkel, A. Gonzalez-Lopez +1
In this paper we study a novel spin chain with nearest-neighbors interactions depending on the sites coordinates, which in some sense is intermediate between the Heisenberg chain a…
Exchange operator formalism for N-body spin models with near-neighbors interactions
A. Enciso, F. Finkel, A. Gonzalez-Lopez +1
We present a detailed analysis of the spin models with near-neighbors interactions constructed in our previous paper [Phys. Lett. B 605 (2005) 214] by a suitable generalization of…
Solvable scalar and spin models with near-neighbors interactions
A. Enciso, F. Finkel, A. Gonzalez-Lopez +1
We construct new solvable rational and trigonometric spin models with near-neighbors interactions by an extension of the Dunkl operator formalism. In the trigonometric case we obta…
Quasi-exactly solvable models in nonlinear optics
G Alvarez, F Finkel, A Gonzalez-Lopez +1
We study a large class of models with an arbitrary (finite) number of degrees of freedom, described by Hamiltonians which are polynomial in bosonic creation and annihilation operat…