Dynamics of entanglement in a one-dimensional Ising chain
arXiv:0805.3396 · doi:10.1103/PhysRevA.77.062330
Abstract
The evolution of entanglement in a one-dimensional Ising chain is numerically studied under various initial conditions. We analyze two problems concerning the dynamics of the entanglement: (i) generation of the entanglement from the pseudopure separable state and (ii) transportation of the entanglement from one end of the chain to the other. The investigated model is a one-dimensional Ising spin-1/2 chain with nearest-neighbor interactions placed in an external magnetic field and irradiated by a weak resonant transverse field. The possibility of selective initialization of partially entangled states is considered. It was shown that, in spite of the use of a model with the direct interactions between the nearest neighbors, the entanglement between remote spins is generated.
19 pages, 7 figures
References in corpus (8)
- Quantum Communication through Spin Chain Dynamics: an Introductory Overview
- Local control of entanglement in a spin chain
- Stimulated wave of polarization in 1D Ising chain
- Quantum state expansion
- Preparation of pseudopure state in a cluster of dipolar-coupled spins with "unresolved" spectrum
- Stimulated wave of polarization in spin chains
- Experimental demonstration of stimulated polarization wave in a chain of nuclear spins
- Entanglement in alternating open spin-1/2 chains with XY-Hamiltonian