Neutral atom interferometry

Bethany Little

John F. Clauser

Abstract : This note provides a brief summary of the use of Fourier-Fresnel imaging to neutral atom interferometry. In applications of neutral-atom interferometry not requiring the interferometer to have an open (multiply connected) topology, the use of this imaging has significant advantages, notably ease of alignment, significantly increased through-put flux, ability to work with very short wavelength (and/or high velocity atoms). The results are primarily interesting in that they span the boundary between trapezoidal moire fringes and sinusoidal wave-interference fringes. Their limited applicability, perhaps accounts for the relative obscurity of many of the results to typical curricula of modern-day optics. The emphasis in this note is thus to put existing results (along with some additions that are needed for clarity) in a form suitable for use by techniques available for neutral-atom interferometry.

Franck Pereira dos Santos

Kishore T. Kapale, Jonathan P. Dowling

We propose an efficient strategy for generating GHZ states of neutral atoms trapped inside a cavity. We then deterministicaly transform these GHZ states into path entangled NOON states for Heisenberg limited atom interferometry.

Guglielmo Maria Tino