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Emergence of thermodynamic behavior within composite quantum systems

Guenter Mahler·Jochen Gemmer·Mathias Michel
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Abstract

Entanglement within a given device provides a potential resource for quantum information processing. Entanglement between system and environment leads to decoherence (thus suppressing non-classical features within the system) but also opens up a route to robust and universal control. The latter is related to thermodynamic equilibrium, a generic behavior of bi-partite quantum systems. Fingerprints of this equilibrium behavior (including relaxation and stability) show up already far from the thermodynamic limit, where a complete solution of the underlying Schroedinger dynamics of the total system is still feasible.

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Guenter Mahler, Jochen Gemmer, Mathias Michel. 2005-09-15. Emergence of thermodynamic behavior within composite quantum systems. https://doi.org/10.1016/j.physe.2005.05.001

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