Competition of Direct and Indirect Sources of Thermal Entanglement in a spin star network
arXiv:1712.01759 · doi:10.1142/S0219749918500077
Abstract
A spin star system consisting of three peripheral two-state systems and a central one is considered, with the peripheral spins assumed to interact with each other, as well as with the central one. It is shown that such two couplings, each one being a thermal entanglement source, can significantly compete in the formation of quantum correlations in the thermal state, to the point that they can destroy any thermal entanglement of the peripheral spins.
10 pages, 6 figures
References in corpus (10)
- Quantum Thermodynamics
- A classification of entanglement in three-qubit systems
- Spin caloritronic nano-oscillator
- Zeno and anti-Zeno effects for quantum Brownian motion
- Macroscopic thermal entanglement due to radiation pressure
- Phase Modulated Thermal Conductance of Josephson Weak Links
- Thermal entanglement of one-dimensional Heisenberg quantum spin chains in magnetic fields
- Probabilistic quantum teleportation via thermal entanglement
- Does three-tangle properly quantify the three-party entanglement for Greenberger-Horne-Zeilinger-type states?
- Dephasing due to quasiparticle tunneling in fluxonium qubits: a phenomenological approach