Hamburg 2009 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 64: Quanteneffekte: Verschränkung

Q 64.5: Talk

Friday, March 6, 2009, 15:00–15:15, VMP 6 HS-D

Structures in entanglement dynamics — •Markus Tiersch, Fernando de Melo, and Andreas Buchleitner — Physikalisches Institut der Albert-Ludwigs-Universität, Hermann-Herder-Str. 3, D-79104 Freiburg, Germany

Understanding the dynamics of entanglement that is exhibited by a quantum system constitutes a major step in the venture to harvest this quantum effect in potential applications, and to elaborate the role that entanglement plays in real world settings. Interesting dynamics include collective coherent driving and general decoherence processes.

Without resorting to the phenomenological treatment of specific examples, we present general features of the structure underlying the dynamics of entanglement. Starting from low dimensional systems where algebraic properties of some entanglement monotones allow for an “entanglement equation of motion” [1,2] we continue, using topological and measure theoretic approaches [3], to typical behaviour exhibited in the thermodynamic limit.

[1] T. Konrad, F. de Melo, M. Tiersch, C. Kasztelan, A. Aragão, A. Buchleitner, Nature Phys. 4, 99 (2008).

[2] M. Tiersch, F. de Melo, A. Buchleitner, Phys. Rev. Lett. 101, 170502 (2008).

[3] M. Tiersch, F. de Melo, A. Buchleitner, arXiv:0810.2506.