Experimental Protection of Two-Qubit Quantum Gates against Environmental Noise by Dynamical Decoupling
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2015-09-10 |
| Journal | Physical Review Letters |
| Authors | Jingfu Zhang, Dieter Suter |
| Institutions | TU Dortmund University |
| Citations | 42 |
Abstract
Section titled āAbstractāHybrid systems consisting of different types of qubits are promising for building quantum computers if they combine useful properties of their constituent qubits. However, they also pose additional challenges if one type of qubits is more susceptible to environmental noise than the others. Dynamical decoupling can help to protect such systems by reducing the decoherence due to the environmental noise, but the protection must be designed such that it does not interfere with the control fields driving the logical operations. Here, we test such a protection scheme on a quantum register consisting of the electronic and nuclear spins of a nitrogen-vacancy center in diamond. The results show that processing is compatible with protection: The dephasing time was extended almost to the limit given by the longitudinal relaxation time of the electron spin.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2000 - Quantum Computation and Quantum Information
- 2008 - Quantum Computing: A Short Course from Theory to Experiment