Can I read Optimized Noise Filtration through Dynamical Decoupling on EtoBox?

Optimized Noise Filtration through Dynamical Decoupling by Uys, Hermann; Biercuk, Michael J.; Bollinger, John J. is a scholarly article available to read on EtoBox.

What is Optimized Noise Filtration through Dynamical Decoupling about?

One approach to maintaining phase coherence of qubits through dynamical decoupling consists of applying a sequence of Hahn spin-echo pulses. Recent studies have shown that, in certain noise environments, judicious choice of the delay times between these pulses can greatly improve the suppression of phase errors compared to traditional approaches. By enforcing a simple analytical condition, we obtain sets of dynamical decoupling sequences that are designed for optimized noise filtration and are spectrum-independent up to a single scaling factor set by the coherence time of the system. We demonstrate the efficacy of these sequences in suppressing phase errors through measurements on a model qubit system, $^{9}$Be$^{+}$ ions in a Penning trap. Our combined theoretical and experimental studies show that in high-frequency-dominated noise environments this approach may suppress phase errors orders of magnitude more efficiently than comparable techniques can.

Author

Uys, Hermann; Biercuk, Michael J.; Bollinger, John J.

Published

2009

Language

EN