Spin resonance under topological driving fields

A. A. Reynoso, J. P. Baltanás, H. Saarikoski, J. E. Vázquez-Lozano, J. Nitta, D. Frustaglia

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We study the dynamics of a localized spin-1/2 driven by a time-periodic magnetic field that undergoes a topological transition. Despite the strongly non-adiabatic effects dominating the spin dynamics, we find that the field's topology appears clearly imprinted in the Floquet spin states through an effective Berry phase emerging in the quasienergy. This has remarkable consequences on the spin resonance condition suggesting a whole new class of experiments to spot topological transitions in the dynamics of spins and other two-level systems, from nuclear magnetic resonance to strongly-driven superconducting qubits.

Original languageEnglish
Article number063010
JournalNew Journal of Physics
Volume19
Issue number6
DOIs
Publication statusPublished - 2017 Jun

Keywords

  • Floquet physics
  • geometric phases
  • magnetic resonance
  • strong driving
  • topological transitions
  • two-level systems

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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