Entanglement generation in a spin chain by a pulsed magnetic field: analytical treatment

Autor:	Andrei B. Klimov, I. Sainz, Gennadiy N Burlak
Rok vydání:	2011
Předmět:	Physics Sequence Quantum decoherence Chain (algebraic topology) Quantum mechanics Phase (waves) Optical physics Concurrence Quantum entanglement Atomic and Molecular Physics and Optics Magnetic field
Zdroj:	The European Physical Journal D. 65:627-634
ISSN:	1434-6079 1434-6060
DOI:	10.1140/epjd/e2011-20309-7
Popis:	Dynamics of the one-dimensional open Ising chain under influence of transverse magnetic field applied in form of π-pulses is studied. It is shown how the application of a specific sequence of such instant kicks to selective spins stimulates arising of perfect dynamical pairwise entanglement between ends of the spin chain. Analytic formulas for the concurrence dynamics are derived. It is also shown that the time required to perfectly entangle the ends of the chains grows linearly with the number of spins in the chain. The effect of the phase decoherence is briefly analyzed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9d559b70587b5ab74d4c2628fa1c8291 https://doi.org/10.1140/epjd/e2011-20309-7 Zobrazit plný text záznamu Plný text ve formátu PDF