Volume 127, Number 2, July 2019
|Number of page(s)||6|
|Published online||02 September 2019|
Local-hidden-state models for T-states using finite shared randomness
Department of Physics, School of Science, Tianjin University - Tianjin 300072, China
Received: 12 March 2019
Accepted: 11 July 2019
The study of local models using finite shared randomness originates from the consideration about the cost of classically simulating entanglement in composite quantum systems. We construct explicitly two families of local-hidden-state (LHS) models for T-states, by mapping the problem to the Werner state. The continuous decreasing of shared randomness along with entanglement, as the anisotropy increases, can be observed in the one from the most economical model for the Werner state. The construction of the one for separable states shows that the separable boundary of T-states can be generated from the one of the Werner state, and the cost is 2 classical bits.
PACS: 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) / 03.65.Ta – Foundations of quantum mechanics; measurement theory / 03.67.Mn – Entanglement measures, witnesses, and other characterizations
© EPLA, 2019
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