This paper investigates the dynamics of two-spin nonlocality generation in a Heisenberg XXX chain with Dzyaloshinskii-Moriya (DM) and Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interactions. We analyze by using uncertainty-induced nonlocality, maximal Bell function, log-negativity. demonstrate that separable state, induced antiferromagnetic interaction as well x-component DM KSEA interaction...

A bstract We propose an interesting BPS/CFT correspondence playground: the correlation function of two intersecting half-BPS surface defects in four-dimensional $$ \mathcal{N} N = 2 supersymmetric SU( N ) gauge theory with fundamental hypermultiplets. show it satisfies a difference equation, fractional quantu...

We consider random singlet phases of spin-$\frac{1}{2}$, random, antiferromagnetic spin chains, in which the universal leading-order divergence $\frac{\ln 2}{3}\ln\ell$ average entanglement entropy a block $\ell$ spins, as well closely related leading term $\frac{2}{3}l^{-2}$ distribution lengths are known by strong-disorder renormalization group (SDRG) method. Here, we address question how lar...

The off-diagonal Bethe Ansatz method [1] is used to revisit the periodic XXX Heisenberg spin2 chain. It is found that the spectrum of the transfer matrix can be characterized by an inhomogeneous T-Q relation, a natural but nontrivial extension of Baxter’s T-Q relation [2]. One of Baxter’s important discoveries is the T-Q relation [2], which provides a convenient and universal parametrization fo...

We derive traditional thermodynamic Bethe ansatz (TBA) equations for the sl(r + 1) Uimin-Sutherland model from the T -system of the quantum transfer matrix. These TBA equations are identical to the ones from the string hypothesis. Next we derive a new family of nonlinear integral equations (NLIE). In particular, a subset of these NLIE forms a system of NLIE which contains only a finite number o...

For the one-dimensional XXX model under the periodic boundary conditions, we discuss two types of eigenvectors, regular eigenvectors which have finite-valued rapidities satisfying the Bethe ansatz equations, and non-regular eigenvectors which are descendants of some regular eigenvectors under the action of the SU(2) spin-lowering operator. It was pointed out by many authors that the non-regular...

For the one-dimensional XXX model under the periodic boundary conditions, we discuss two types of eigenvectors, regular eigenvectors which have finite-valued rapidities satisfying the Bethe ansatz equations, and non-regular eigenvectors which are descendants of some regular eigenvectors under the action of the SU(2) spin-lowering operator. It was pointed out by many authors that the non-regular...