4 papers
Probing Strong Coupling between a Microwave Cavity and a Spin Ensemble with Raman Heterodyne Spectroscopy
Gavin G. G. King, Peter S. Barnett, John G. Bartholomew +2
Raman heterodyne spectroscopy is a powerful tool for characterizing the energy and dynamics of spins. The technique uses an optical pump to transfer coherence from a spin transitio…
Theory of Microwave-Optical Conversion Using Rare-Earth Ion Dopants
Peter S. Barnett, Jevon J. Longdell
We develop a theoretical description of a device for coherent conversion of microwave to optical photons. For the device, dopant ions in a crystal are used as three-level systems,…
Controlled creation of three-dimensional vortex structures in Bose--Einstein condensates using artificial magnetic fields
James Schloss, Peter Barnett, Rashi Sachdeva +1
The physics of quantized vortex excitations in atomic Bose-Einstein condensates has been extensively studied in recent years.Although simple vortex lines are relatively easy to cre…
Dynamics of Hot Bose-Einstein Condensates: stochastic Ehrenfest relations for number and energy damping
Rob G. McDonald, Peter S. Barnett, Fradom Atayee +1
Describing partially-condensed Bose gases poses a long-standing theoretical challenge. We present exact stochastic Ehrenfest relations for the stochastic projected Gross-Pitaevskii…