摘要:
The invention relates to a method for measuring an external parameter (a) by means of atomic interferometry using two sets of atoms (11, 12) that belong to different species. Two measurements are taken simultaneously at the same location, but independently from one another, in order to obtain two measurement results (P 11 , P 12 ). Constant phase shifts that appear in the atomic interferences for the two atom sets are quadrature-adjusted in order to ensure that one of the two measurements provides a value for the external parameter with satisfactory accuracy.
摘要:
Embodiments described herein provide for a method of launching atoms in an atom interferometer. The method includes determining a direction of the total effective acceleration force on the atoms, controlling a direction of launch of the atoms for measurement in the atom interferometer based on the direction of the total effective acceleration force, and obtaining measurements from the atoms.
摘要:
A method for preparing a biological material for implanting provides irradiating at least a portion of the surface of the material with an accelerated Neutral Beam.
摘要:
Methods and apparatus for providing coherent atom population transfer using coherent laser beam pairs in which the frequency difference between the beams of a pair is swept over time. Certain examples include a Raman pulse adiabatic rapid passage sweep regimen configured to be used as a beamsplitter and combiner in conjunction with an adiabatic rapid passage mirror sweep or a standard Raman mirror pulse in a 3-pulse interferometer sequence.
摘要:
L'invention concerne un dispositif électromagnétique pour la production d'atomes neutres froids comprenant une structure ferromagnétique présentant quatre pôles disposés dans un même plan XOY excités par des bobines principales fournissant l'excitation principale, et deux pôles additionnels orientés selon un axe Z perpendiculaires au plan desdits quatre pôles, les pôles étant couplés magnétiquement par une ou plusieurs culasses. Les pôles additionnels sont constitués par une structure externe et une structure interne excités séparément par deux bobines parcourues par des courants contraires.