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Trapped Ion Quantum Computing Quantum Thermodynamics

Cross-correlation spin noise spectroscopy of heterogeneous interacting spin systems

arXiv

Authors: Dibyendu Roy, Luyi Yang, Scott A. Crooker, Nikolai A. Sinitsyn

Year

2014

Paper ID

47936

Status

Preprint

Abstract Read

~2 min

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Abstract

We develop and apply a minimally invasive approach for characterization of inter-species spin interactions by detecting spin fluctuations alone. We consider a heterogeneous two-component spin ensemble in thermal equilibrium that interacts via binary exchange coupling, and we determine cross-correlations between the intrinsic spin fluctuations exhibited by the two species. Our theoretical predictions are experimentally confirmed using `two-color' optical spin noise spectroscopy on a mixture of interacting Rb and Cs alkali vapors. The results allow us to explore the rates of spin exchange and total spin relaxation under conditions of strict thermodynamic equilibrium.

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We develop and apply a minimally invasive approach for characterization of inter-species spin interactions by detecting spin fluctuations alone.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1408.5399 [2] arXiv https://arxiv.org/abs/1408.5399 [3] Publisher https://arxiv.org/abs/1408.5399

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