Year: 2016
Type: article
Abstract: Laser noise is a decisive limiting factor in high precision spectroscopy of narrow lines using atomic ensembles. In an idealized Doppler and differential-light-shift-free magic wavelength lattice configuration, it remains as one distinct principal limitation beyond collective atomic decay. In this work we study the limitations originating from laser phase and amplitude noise in an idealized Ramsey pulse interrogation scheme with uncorrelated atoms. Phase noise leads to a saturation of the frequency sensitivity with increasing atom number while amplitude noise implies a scaling with τ being the interrogation time. We employ a technique using decoherence-free subspaces first introduced in Dorner (2012 New J. Phys. 14 043011 ) which can restore the scaling with the square root of the inverse particle number . Similar results and improvements are obtained numerically for a Rabi spectroscopy setup.
Authors: D Plankensteiner, J Schachenmayer, H Ritsch, C Genes
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,325
Awards: G225723456, JILA PFC: Bridging theGap from Few-Body to Many-Body through Quantum Control, G5062013453, G5249136012, Hybrid cavity quantum optomechanics in an optical cavity, Quantum State Engineering and Quantum Information Processing with Ultra-Cold Polar Molecules, G6855372398, G8047585187
OpenAlex ID: W2346150302