Results 1 to 10 of about 59 (55)

Quantum Statistical Complexity Measure as a Signaling of Correlation Transitions [PDF]

Entropy, 2022
We introduce a quantum version for the statistical complexity measure, in the context of quantum information theory, and use it as a signaling function of quantum order–disorder transitions. We discuss the possibility for such transitions to characterize
André T. Cesário, Diego L. B. Ferreira, Tiago Debarba, Fernando Iemini, Thiago O. Maciel, Reinaldo O. Vianna   +5 more
doaj   +2 more sources

Exactly solvable models of unconventional magnetic alloys: Bethe ansatz versus renormalization-group method [PDF]

Physical Review B, 1998
A final version.
Rupasov, Valery, Rupasov, Valery
openaire   +4 more sources

Bethe Ansatz Solutions to Quasi Exactly Solvable Difference Equations

Symmetry, Integrability and Geometry: Methods and Applications, 2009
Bethe ansatz formulation is presented for several explicit examples of quasi exactly solvable difference equations of one degree of freedom which are introduced recently by one of the present authors.
Ryu Sasaki, Wen-Li Yang, Yao-Zhong Zhang
doaj   +2 more sources

Extended Bethe-Richardson-Gaudin ansatzes for the solution of a mean-field plus separable pairing model with three non-degenerate j-orbits

Physics Letters B, 2022
Based on the Bethe-Richardson-Gaudin ansatz for the standard pairing model, extended Bethe- Richardson-Gaudin ansatzes for eigenvectors of a spherical mean-field plus separable pairing model with three non-degenerate j-orbits are proffered.
Feng Pan, Yingxin Wu, Shengze Guan, Zhibo Qu, Lianrong Dai, J.P. Draayer   +5 more
doaj   +1 more source

Emergence of generalized hydrodynamics in the non-local Luttinger model

SciPost Physics, 2020
We propose the Luttinger model with finite-range interactions as a simple tractable example in 1+1 dimensions to analytically study the emergence of Euler-scale hydrodynamics in a quantum many-body system.
Per Moosavi
doaj   +1 more source

Exact solution of spherical mean-field plus special orbit-dependent non-separable pairing model with multi non-degenerate j-orbits

Physics Letters B, 2019
Exact solution of spherical mean-field plus a special orbit-dependent non-separable pairing Hamiltonian with multi non-degenerate j-orbits, which is related to two previously known hyperbolic Gaudin models, is explored.
Feng Pan, Dan Zhou, Yingwen He, Siyu Yang, Yunfeng Zhang, J.P. Draayer   +5 more
doaj   +1 more source

Driven Quantum Dynamics: Will It Blend?

Physical Review X, 2017
Randomness is an essential tool in many disciplines of modern sciences, such as cryptography, black hole physics, random matrix theory, and Monte Carlo sampling.
Leonardo Banchi, Daniel Burgarth, Michael J. Kastoryano   +2 more
doaj   +1 more source

On exactly solvable Yang-Baxter models and enhanced symmetries

SciPost Physics
We study Yang-Baxter deformations of the flat space string that result in exactly solvable models, finding the Nappi-Witten model and its higher dimensional generalizations.
Khalil Idiab, Stijn Jurrien van Tongeren
doaj   +1 more source

2D CFT and efficient Bethe ansatz for exactly solvable Richardson-Gaudin models

This work inaugurates a series of complementary studies on Richardson-Gaudin integrable models. We begin by reviewing the foundations of classical and quantum integrability, recalling the algebraic Bethe ansatz solution of the Richardson (reduced BCS) and Gaudin (central spin) models, and presenting a proof of their integrability based on the Knizhnik ...
Biskowski, Grzegorz, Ferrari, Franco, Piatek, Marcin R.   +2 more
openaire   +2 more sources

Exact dimer phase with anisotropic interaction for one dimensional magnets. [PDF]

Sci Rep, 2021
Xu HZ, Zhang SY, Guo GC, Gong M.
europepmc   +1 more source