Slow thermalization in disordered dipolar spin systems

POSTER

Abstract

Ensembles of strongly interacting spins offer an attractive platform for the study of many-body quantum dynamics. We present a detailed study of the electronic spin dynamics within a diamond sample with high nitrogen vacancy (NV) concentration (\textasciitilde 40 ppm). Due to the small distance between neighboring NV centers (\textasciitilde 5 nm), the spin-spin interactions dominate over decoherence. In particular, we investigate the interplay between interactions and disorder in such a system. By utilizing coherent resonance phenomena under a spin-locking pulse sequence, we observe and study slow thermalization corresponding to the critical regime of interacting many-body system at various disorder strengths.

Authors

  • Joonhee Choi

    • Harvard Univ
    • Harvard University

  • Georg Kucsko

    • Harvard Univ
    • Harvard University

  • Soonwon Choi

    • Harvard Univ
    • Harvard University

  • Peter Maurer

    • Stanford Univ

  • Nathalie de Leon

    • Harvard Univ

  • Norman Yao

    • UC Berkeley
    • University of California Berkeley

  • Fedor Jelezko

    • Ulm Univ

  • Junichi Isoya

    • Univ of Tsukuba

  • Mikhail Lukin

    • Harvard Univ
    • Harvard University
    • Harvard University, Department of Physics
    • Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
    • Physics Department, Harvard University
    • Department of Physics, Harvard University