34 citations · 156 across the 17 of their papers we have counts for
17 papers
Dissipatively dressed quasiparticles in boundary driven integrable spin chains
Vladislav Popkov, Xin Zhang, Carlo Presilla +1
The nonequilibrium steady state (NESS) of integrable spin chains experiencing strong boundary dissipation is accounted by introducing quasiparticles with a renormalized -- dissipat…
Exact spin helix eigenstates in the anisotropic spin- Heisenberg model with arbitrary dimensions
Mingchen Zheng, Chenguang Liang, Shu Chen +1
Spin helix states-characterized by their spatially modulated spin textures-are exact eigenstates of the one-dimensional anisotropic spin- Heisenberg model under specif…
Chiral eigenbases of the XX and XY quantum spin chains
Xin Zhang, Frank Göhmann, Andreas Klümper +1
We calculate the values of observables in chiral eigenstates of the XX quantum spin chain that were introduced in previous work and compare the form of the result with the respecti…
Bethe-ansatz diagonalization of steady state of boundary driven integrable spin chains
Vladislav Popkov, Xin Zhang, Carlo Presilla +1
We find that the density operator of non-equilibrium steady state (NESS) of XXZ spin chain with strong ``sink and source" boundary dissipation, can be described in terms of quasipa…
A Pedestrian's Way to Baxter's Bethe Ansatz for the Periodic XYZ Chain
Xin Zhang, Andreas Klümper, Vladislav Popkov
A chiral coordinate Bethe ansatz method is developed to study the periodic XYZ chain. We construct a set of chiral vectors with fixed number of kinks. All vectors are factorized an…
Universality in relaxation of spin helices under the - spin chain dynamics
Vladislav Popkov, Marko Žnidarič, Xin Zhang
We describe dynamics of transverse spin-helix state (SHS) -- a product state with spatially rotating magnetization -- under anisotropic Heisenberg XXZ spin chain evolution. Due to…
Chiral basis for qubits and spin-helix decay
Vladislav Popkov, Xin Zhang, Frank Göhmann +1
We propose a qubit basis composed of transverse spin helices with kinks. Unlike the usual computational basis, this chiral basis is well suited for describing quantum states with n…
Gravitational wave constraints on non-birefringent dispersions of gravitational waves due to Lorentz violations with GWTC-3
Cheng Gong, Tao Zhu, Rui Niu +5
The standard model extension (SME) is an effective field theory framework that can be used to study the possible violations of Lorentz symmetry in the gravitational interaction. In…
Invariant subspaces and explicit Bethe vectors in the integrable open spin $\XYZ$ chain
Xin Zhang, Andreas Klümper, Vladislav Popkov
We derive a criterion under which splitting of all eigenstates of an open $\XYZ$ Hamiltonian with boundary fields into two invariant subspaces, spanned by chiral shock states, occu…
Shadow and weak deflection angle of a black hole in nonlocal gravity
Qi-Ming Fu, Shao-Wen Wei, Li Zhao +2
Black hole shadow and gravitational lensing play important roles in testing gravitational theories in the strong field regime. As the first-order modifications from quantum gravity…
Boundary driven chain: Exact inhomogeneous triangular matrix product ansatz
Vladislav Popkov, Xin Zhang, Tomaz Prosen
We construct an explicit matrix product ansatz for the steady state of a boundary driven spin- chain for arbitrary local polarizing channels at the chain's en…
Chiral coordinate Bethe ansatz for phantom eigenstates in the open XXZ spin- chain
Xin Zhang, Andreas Kluemper, Vladislav Popkov
We construct the coordinate Bethe ansatz for all eigenstates of the open spin- XXZ chain that fulfill the phantom roots criterion (PRC). Under the PRC, the Hilbert space s…
Multipole analysis on gyroscopic precession in gravity with irreducible Cartesian tensors
Bofeng Wu, Xin Zhang
In gravity, the metric, presented in the form of the multipole expansion, for the external gravitational field of a spatially compact supported source up to order is…
Phantom Bethe roots in the integrable open spin chain
Xin Zhang, Andreas Klümper, Vladislav Popkov
We investigate special solutions to the Bethe Ansatz equations (BAE) for open integrable Heisenberg spin chains containing phantom (infinite) Bethe roots. The phantom Bethe r…
Phantom Bethe excitations and spin helix eigenstates in integrable periodic and open spin chains
Vladislav Popkov, Xin Zhang, Andreas Klümper
We demonstrate the existence of special phantom excitations for open and periodically closed integrable systems at the example of the Heisenberg spin chain. The phantom excit…
An Explicitly Solvable Energy-Conserving Algorithm for Pitch-Angle Scattering in Magnetized Plasmas
Yichen Fu, Xin Zhang, Hong Qin
We develop an Explicitly Solvable Energy-Conserving (ESEC) algorithm for the Stochastic Differential Equation (SDE) describing the pitch-angle scattering process in magnetized plas…
Simulating Pitch Angle Scattering Using An Explicitly Solvable Energy Conserving Algorithm
Xin Zhang, Yichen Fu, Hong Qin
Particle distribution functions evolving under the Lorentz operator can be simulated with the Langevin equation for pitch angle scattering. This approach is frequently used in part…