Randomized control of open quantum systems

Details Randomized control of open quantum systems Randomized control of open quantum systems

2006-01-16

arxiv.org/abs/quant-ph/0601106v1

Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference 2005, Seville, Spain, Dec

Physics

Quantum Physics

6 pages, no figure, requires IEEEtran LaTeX

Scientific paper

The problem of open-loop dynamical control of generic open quantum systems is addressed. In particular, I focus on the task of effectively switching off environmental couplings responsible for unwanted decoherence and dissipation effects. After revisiting the standard framework for dynamical decoupling via deterministic controls, I describe a different approach whereby the controller intentionally acquires a random component. An explicit error bound on worst-case performance of stochastic decoupling is presented.

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