The excitation operator method in the spin dynamics of the one-dimensional XXZ model
arXiv:1207.1861 · doi:10.1016/j.physe.2012.10.032
Abstract
We develop the excitation operator method, which is designed to solve the Heisenberg equation of motion by constructing the excitation operators. We use it to study the spin dynamics in the one-dimensional XXZ model. We find the diffusive spin transport in the gapped phase at the high temperature limit.
7 pages, 6 figures
References in corpus (24)
- The numerical renormalization group method for quantum impurity systems
- Real time evolution using the density matrix renormalization group
- Quantum Quench in the Transverse Field Ising Chain
- Interaction Quench in the Hubbard model
- Real-time dynamics in Quantum Impurity Systems: A Time-dependent Numerical Renormalization Group Approach
- Real-time path integral approach to nonequilibrium many-body quantum system
- Spin transport in a one-dimensional anisotropic Heisenberg model
- Diagrammatic Monte Carlo simulation of non-equilibrium systems
- Spin Precession and Real Time Dynamics in the Kondo Model: A Time-Dependent Numerical Renormalization-Group Study
- Real-time simulations of nonequilibrium transport in the single-impurity Anderson model
- Twofold advance in the theoretical understanding of far-from-equilibrium properties of interacting nanostructures
- A perturbative nonequilibrium renormalization group method for dissipative quantum mechanics: Real-time RG in frequency space (RTRG-FS)
- Dynamics in the Ising field theory after a quantum quench
- Charge and spin transport in strongly correlated one-dimensional quantum systems driven far from equilibrium
- Transient dynamics of the Anderson impurity model out of equilibrium
- A real-time study of diffusive and ballistic transport in spin-1/2 chains using the adaptive time-dependent density matrix renormalization group method
- Transport properties and Kondo correlations in nanostructures: the time-dependent DMRG method applied to quantum dots coupled to Wilson chains
- Density dynamics in translationally invariant spin-1/2 chains at high temperatures: a current auto-correlation approach to finite time- and length-scales
- Real Time Evolution in Quantum Many-Body Systems With Unitary Perturbation Theory
- New theoretical approaches for correlated systems in nonequilibrium
- Unitary perturbation theory approach to real-time evolution problems
- Finite Drude weight for 1D low temperature conductors
- Quench dynamics of correlated quantum dots
- Non-equilibrium transport through a point contact in the non-Abelian quantum Hall state