217 citations · 744 across the 12 of their papers we have counts for
4 papers · 1 filter
Squeezing in Bose-Einstein condensates with large numbers of atoms
Mattias T Johnsson, Graham R Dennis, Joseph J Hope
We examine the feasibility of creating and measuring large relative number squeezing in multicomponent trapped Bose-Einstein condensates. In the absence of multimode effects, this…
Precision atomic gravimeter based on Bragg diffraction
P. A. Altin, M. T. Johnsson, V. Negnevitsky +10
We present a precision gravimeter based on coherent Bragg diffraction of freely falling cold atoms. Traditionally, atomic gravimeters have used stimulated Raman transitions to sepa…
Generation of directional, coherent matter beams through dynamical instabilities in Bose-Einstein condensates
Graham R. Dennis, Mattias T. Johnsson
We present a theoretical analysis of a coupled, two-state Bose-Einstein condensate with non-equal scattering lengths, and show that dynamical instabilities can be excited. We demon…
Paired atom laser beams created via four-wave mixing
R. G. Dall, L. J. Byron, A. G. Truscott +3
A method to create paired atom laser beams from a metastable helium atom laser via four-wave mixing is demonstrated. Radio frequency outcoupling is used to extract atoms from a Bos…