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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/255

Title: Swapping path-spin intraparticle entanglement onto spin-spin interparticle entanglement
Authors: Adhikari, S
Majumdar, A S
Home, Dipankar
Pan, A K
Issue Date: 2010
Publisher: Europhys. Lett.
Citation: S. Adhikari, A. S. Majumdar, D. Home, A. K. Pan, Swapping path-spin intra-particle entanglement onto spin-spin inter-particle entanglement, Europhys. Lett., 2010, 89, 10005
Abstract: Based on a scheme that produces an entanglement between the spin and the path variables of a single spin-1/2 particle (qubit) using a beam-splitter and a spin-flipper, we formulate a procedure for transferring this intraparticle hybrid entanglement to an interparticle entanglement between the spin variables of two other spatially separated spin-1/2 particles which never interact with each other during the entire process. This procedure of entanglement swapping is accomplished by a Mach-Zehnder setup in conjunction with the Stern-Gerlach measuring device and by using suitable unitary operations. The proposed protocol, thus, enables the use of intraparticle entanglement as a resource - a feature that has remained unexplored.
URI: http://hdl.handle.net/123456789/255
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