Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.109.080503
Title: Using separable bell-diagonal states to distribute entanglement
Authors: Kay, A. 
Issue Date: 21-Aug-2012
Source: Kay, A. (2012-08-21). Using separable bell-diagonal states to distribute entanglement. Physical Review Letters 109 (8) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.109.080503
Abstract: One of the many bizarre features of entanglement is that Alice, by sending a qubit to Bob in a separable state, can generate some entanglement between herself and Bob. This protocol is stripped down to the bare essentials to better elucidate the key properties of the initial resource state that enable this entanglement distribution. The necessary and sufficient conditions under which the correlations of a Bell-diagonal state serve as a useful resource are proven, giving upper and lower bounds on the entanglement that can be distributed when those conditions are met. © 2012 American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/112542
ISSN: 00319007
DOI: 10.1103/PhysRevLett.109.080503
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