Results 51 to 60 of about 132,022 (206)
Bethe Ansatz, quantum circuits, and the F-basis
SciPost PhysicsThe Bethe Ansatz is a method for constructing exact eigenstates of quantum-integrable spin chains. Recently, deterministic quantum algorithms, referred to as "algebraic Bethe circuits", have been developed to prepare Bethe states for the spin-$1/2$ XXZ ...
Roberto Ruiz, Alejandro Sopena, Esperanza López, Germán Sierra, Balázs Pozsgay
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MONTE–CARLO THERMODYNAMIC BETHE ANSATZ [PDF]
International Journal of Modern Physics B, 2006 We introduce a Monte–Carlo simulation approach to thermodynamic Bethe ansatz (TBA). We exemplify the method on one-particle integrable models, which include a free boson and a free fermions systems along with the scaling Lee–Yang model (SLYM). It is confirmed that the central charges and energies are correct to a very good precision, typically 0.1% or
openaire +3 more sources
On the Replica Symmetric Solution in General Diluted Spin Glasses
Random Structures &Algorithms, Volume 66, Issue 4, July 2025.ABSTRACT We present a unifying approach to studying the replica symmetric solution in general diluted spin glass models on random p$$ p $$‐uniform hypergraphs with sparsity parameter α$$ \alpha $$. Our result shows that there exist two key regimes in which the model exhibits replica symmetry and the free energy can be explicitly represented as the ...
Ratul Biswas, Wei‐Kuo Chen, Arnab Sen
wiley +1 more source
Combinatorics of Lax Objects in Bethe Ansatz [PDF]
, 2015 Algebraic Bethe Ansatz, also known as quantum inverse scattering method, is a consistent tool based on the YangBaxter equation which allows to construct Bethe Ansatz exact solutions.
Stagraczyński, R., R. Stagraczynski
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Exact solution of the Izergin-Korepin Gaudin model with periodic and open boundaries
SciPost Physics CoreWe study the Izergin-Korepin Gaudin models with both periodic and open integrable boundary conditions, which describe quantum systems exhibiting novel long-range interactions.
Xiaotian Xu, Pei Sun, Xin Zhang, Junpeng Cao, Tao Yang
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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 +5 more
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Witnessing Entanglement and Quantum Correlations in Condensed Matter: A Review
Advanced Quantum Technologies, Volume 8, Issue 3, March 2025.Detection and certification of entanglement and quantum correlations in materials is of fundamental and far‐reaching importance for both basic science and identification of systems suitable for novel technologies. This review article comprehensively covers witnesses suitable to condensed matter, their derivations and experimental applications.
Pontus Laurell +3 more
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Perturbed conformal field theory, nonlinear integral equations and spectral problems [PDF]
, 2000 This thesis is concerned with various aspects of perturbed conformal field theory and the methods used to calculate finite-size effects of integrable quantum field theories.
Dunning, Tania Clare +2 more
core
Exact solution of the sp(4) integrable spin chain with generic boundaries
Journal of High Energy Physics, 2019 The off-diagonal Bethe ansatz method is generalized to the integrable model associated with the sp(4) (or C 2) Lie algebra. By using the fusion technique, we obtain the complete operator product identities among the fused transfer matrices.
Guang-Liang Li +7 more
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Spin‐s$s$ Dicke States and Their Preparation
Advanced Quantum Technologies, Volume 7, Issue 12, December 2024.Dicke states are completely symmetric multi‐qubit states, which have many applications in quantum information and quantum computing. This work introduces higher‐spin generalizations of Dicke states, and formulates an efficient quantum circuit for preparing them on a quantum computer. The complete circuit diagram for the spin‐1 Dicke state |D2,2(1)⟩=16(|
Rafael I. Nepomechie +2 more
wiley +1 more source