The sudden death of entanglement in constructed Yang–Baxter systems

The sudden death of entanglement in constructed Yang–Baxter systems Some Hamiltonians are constructed from the unitary $${\check{R}_{i,i+1}(\theta, \varphi)}$$ -matrices, where θ and $${\varphi}$$ are time-independent parameters. We show that the entanglement sudden death (ESD) can happen in these closed Yang–Baxter systems. It is found that the ESD is not only sensitive to the initial condition, but also has a great connection with different Yang–Baxter systems. Especially, we find that the meaningful parameter $${\varphi}$$ has a great influence on ESD. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

The sudden death of entanglement in constructed Yang–Baxter systems

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Publisher
Springer US
Copyright
Copyright © 2009 by Springer Science+Business Media, LLC
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-009-0125-x
Publisher site
See Article on Publisher Site

Abstract

Some Hamiltonians are constructed from the unitary $${\check{R}_{i,i+1}(\theta, \varphi)}$$ -matrices, where θ and $${\varphi}$$ are time-independent parameters. We show that the entanglement sudden death (ESD) can happen in these closed Yang–Baxter systems. It is found that the ESD is not only sensitive to the initial condition, but also has a great connection with different Yang–Baxter systems. Especially, we find that the meaningful parameter $${\varphi}$$ has a great influence on ESD.

Journal

Quantum Information ProcessingSpringer Journals

Published: Aug 7, 2009

References

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