Fast Quantum State Tomography in the Nitrogen Vacancy Center of Diamond
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2023-02-28 |
| Journal | Physical Review Letters |
| Authors | Jingfu Zhang, Swathi S. Hegde, Dieter Suter |
| Institutions | TU Dortmund University |
| Citations | 6 |
Abstract
Section titled āAbstractāQuantum state tomography is the procedure for reconstructing unknown quantum states from a series of measurements of different observables. Depending on the physical system, different sets of observables have been used for this procedure. In the case of spin qubits, the most common procedure is to measure the transverse magnetization of the system as a function of time. Here, we present a different scheme that relies on time-independent observables and therefore does not require measurements at different evolution times, thereby greatly reducing the overall measurement time. To recover the full density matrix, we use a set of unitary operations that transform the density operator elements into the directly measurable observable. We demonstrate the performance of this scheme in the electron-nuclear spin system of the nitrogen vacancy center in diamond.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal SourceāReferences
Section titled āReferencesā- 2007 - Elements of Quantum Optics [Crossref]
- 2000 - Quantum Computation and Quantum Information
- 2008 - Quantum Computing: A Short Course from Theory to Experiment
- 1987 - Principles of Nuclear Magnegtic Resonance in One and Two Dimensions