W-like states of N uncoupled spins 1/2
arXiv:0801.3391 · doi:10.1140/epjst/e2008-00719-6
Abstract
The exact dynamics of a disordered spin star system, describing a central spin coupled to N distinguishable and non interacting spins 1/2, is reported. Exploiting their interaction with the central single spin system, we present possible conditional schemes for the generation of W-like states, as well as of well-defined angular momentum states, of the N uncoupled spins. We provide in addition a way to estimate the coupling intensity between each of the N spins and the central one. Finally the feasibility of our procedure is briefly discussed.
8 pages, 2 figures, accepted for publication in European Physical Journal Special Topics
References in corpus (7)
- Entanglement versus Correlations in Spin Systems
- Spin Chains as Perfect Quantum State Mirrors
- Non-Markovian reduced dynamics and entanglement evolution of two coupled spins in a quantum spin environment
- Multipartite entanglement in quantum spin chains
- Universality in the entanglement structure of ferromagnets
- Quantum entanglement dynamics and decoherence wave in spin chains at finite temperatures
- Spin Decoherence from Hamiltonian dynamics in Quantum Dots