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Analyzing nuclear spins in diamond at room temperature based on traversal periodic-signal identification

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2022-06-27
JournalApplied Physics Letters
AuthorsFeifei Zhou, Xueying Zhou, Zhiyi Hu, Yumeng Song, Ting Zhang
InstitutionsHefei University of Technology, Zhejiang Lab
Citations1

Abstract

Section titled ā€œAbstractā€

Detecting and imaging nuclear spins are of fundamental importance for spin-based quantum information processing in diamond. It is often realized by means of dynamical decoupling (DD) strategies, where a high-efficiency method for DD spectral analysis is required. Previously, a deep-learning-based algorithm is developed and applied on a cryogenic nitrogen-vacancy center experiment. Here, we improve the method by using a traversal periodic-signal identification approach before the deep-learning processing. With this improvement, low-resolution DD spectra with overlapped peaks could be well separated. This enables the deep-learning procedure being generally used in room-temperature experiments, where the measured spectra are often broadened with temperature. We apply this improved method in experiment, and its produced results match well with expectation. This method promises a wide range of applications in other spin-based systems.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2004 - Observation of coherent oscillation of a single nuclear spin and realization of a two-qubit conditional quantum gate [Crossref]
  2. 2012 - Room-temperature quantum bit memory exceeding one second [Crossref]
  3. 2011 - A quantum memory intrinsic to single nitrogen-vacancy centres in diamond [Crossref]
  4. 2017 - Entanglement distillation between solid-state quantum network nodes [Crossref]
  5. 2007 - Quantum register based on individual electronic and nuclear spin qubits in diamond [Crossref]
  6. 2016 - Enhancing quantum sensing sensitivity by a quantum memory [Crossref]
  7. 2017 - A quantum spectrum analyzer enhanced by a nuclear spin memory [Crossref]
  8. 2017 - Measuring broadband magnetic fields on the nanoscale using a hybrid quantum register [Crossref]
  9. 2005 - NMR techniques for quantum control and computation [Crossref]
  10. 2012 - Detection and control of individual nuclear spins using a weakly coupled electron spin [Crossref]

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