Toward quantum many-body dynamics in NV center ensembles

Demitry Farfurnik, Nir Bar-Gill*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The study of quantum many-body spin physics in realistic solid-state platforms has been a long-standing goal in quantum and condensed-matter physics. We demonstrate separate steps required to reach this goal using nitrogen-vacancy (NV) centers in diamond. First, standard (TEM) electron irradiation is used for the enhancement of N to NV conversion efficiencies by over an order-of-magnitude. Second, robust pulsed and continuous dynamical decoupling (DD) techniques enable the preservation of arbitrary states of the ensemble. These combined efforts could lead to the desired interaction-dominated regime. Finally, we simulate the effects of continuous and pulsed microwave (MW) control on the resulting NV-NV many body dynamics in a realistic spin-bath environment. We emphasize that dominant interaction sources could be identified and decoupled by the application of proper pulse sequences, and the modification of such sequences could lead to the creation engineered interaction Hamiltonians. Such interaction Hamiltonians could pave the way toward the creation of non-classical states, e.g. spin-squeezed states, which were not yet demonstrated in the solid-state, and could eventually lead to magnetic sensing beyond the standard quantum limit (SQL).

Original languageAmerican English
Title of host publicationOptical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology
EditorsJacob Scheuer, Selim M. Shahriar
PublisherSPIE
ISBN (Electronic)9781510625105
DOIs
StatePublished - 2019
EventOptical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology 2019 - San Francisco, United States
Duration: 2 Feb 20197 Feb 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10934
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology 2019
Country/TerritoryUnited States
CitySan Francisco
Period2/02/197/02/19

Bibliographical note

Publisher Copyright:
© 2019 SPIE CCC.

Keywords

  • Many-body dynamics
  • NV centers in diamond
  • TEM irradiation

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