Randomized control of open quantum systems

Abstract

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.

6 pages, no figure, requires IEEEtran LaTeX

References in corpus (4)

• Performance of Deterministic Dynamical Decoupling Schemes: Concatenated and Periodic Pulse Sequences
• Fault-Tolerant Quantum Computation For Local Non-Markovian Noise
• Random decoupling schemes for quantum dynamical control and error suppression
• Dynamical control of qubit coherence: Random versus deterministic schemes

Cited by in corpus (1)

• Advantages of Randomization in Coherent Quantum Dynamical Control