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Self-stimulated pulse echo trains from inhomogeneously broadened spin ensembles

Self-stimulated pulse echo trains from inhomogeneously broadened spin ensembles

Authors :
Debnath, Kamanasish
Dold, Gavin
Morton, John J. L.
Mølmer, Klaus
Source :
Phys. Rev. Lett. 125, 137702 (2020)
Publication Year :
2020

Abstract

We show experimentally and describe theoretically how a conventional magnetic resonance Hahn echo sequence can lead to a self-stimulated pulse echo train when an inhomogeneously broadened spin ensemble is coupled to a resonator. Effective strong coupling between the subsystems assures that the first Hahn echo can act as a refocussing pulse on the spins, leading to self-stimulated secondary echoes. Within the framework of mean field theory, we show that this process can continue multiple times leading to a train of echoes. We introduce an analytical model that explains the shape of the first echo and numerical results that account well for the experimentally observed shape and strength of the echo train and provides insights into the collective effects involved.<br />Comment: Accepted version, to appear in Phys Rev Lett

Subjects

Subjects :
Quantum Physics

Details

Database :
arXiv
Journal :
Phys. Rev. Lett. 125, 137702 (2020)
Publication Type :
Report
Accession number :
edsarx.2004.01116
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevLett.125.137702