Optical-Coupling of distant spins via collective enhancement in multi-mode whispering gallery resonators

Daniel Lombardo, Jason Twamley

Research output: Contribution to journalArticle

Abstract

The quantum coupling of spatially distant spins via optical photons using cavity quantum electrodynamic (cQED) methods has proved experimentally challenging due to the large spin-photon coupling strengths required. To achieve such coupling strengths using traditional cQED methods requires either individual spins and ultra-small cavities or an ensemble of identical spins coupled to larger cavities. In this work we describe a method to couple distant spins via the collective enhanced coupling to a large ensemble ∼ N, of degenerate optical Whispering Gallery Modes (WGM) in a spherical resonator where the spins are spatially located at the antipodes. The setup can be scaled-up to build 1D, 2D and 3D cQED lattices to enable quantum simulation or computing.

Original languageEnglish
Pages (from-to)2945-2961
Number of pages17
JournalOptics Express
Volume23
Issue number3
DOIs
Publication statusPublished - 9 Feb 2015

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