Rejection of wavefront aberrations in an atomic gradiometer

• URL: http://arxiv.org/abs/2511.07013v1
• Date: Mon, 10 Nov 2025 12:04:31 GMT
• Title: Rejection of wavefront aberrations in an atomic gradiometer
• Authors: Louis Pagot, Sébastien Merlet, Leonid A Sidorenkov, Franck Pereira dos Santos,
• Abstract summary: One of the main residual limitations of inertial sensors based on atom interferometry stems from laser beam distortions.<n>Here we present numerical simulations, accompanied by analytical calculations, which quantify the impact of these effects in a cold atom gradiometer.<n>We demonstrate that the propagation of interferometric laser beam aberrations, combined with initial asymmetry and significant time-of-flight expansion of the the two atomic sources, limit the common-mode rejection of phase noise in a differential configuration.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: One of the main residual limitations of inertial sensors based on atom interferometry stems from laser beam distortions, which cause parasitic phase shifts and non-homogeneous matter-light couplings. Here we present numerical simulations, accompanied by analytical calculations, which quantify the impact of these effects in a cold atom gradiometer. We demonstrate that the propagation of interferometric laser beam aberrations, combined with initial asymmetry and significant time-of-flight expansion of the the two atomic sources, limit the common-mode rejection of phase noise in a differential configuration. The resulting deviations in gravitational acceleration and its gradient are within reach of current experimental devices. Our study allows us to evaluate the surface quality requirements for retroreflective optics in cold-atom gradiometers of various baselines, and can be extended to other sensors based on different interferometer geometries.

Related papers

• Quantum Interference of Distinguishable Photons Based on Spatially-Resolved Measurements [67.410870290301]
  We present experimental results demonstrating the quantum interference of two photons distinguishable in their transverse momenta.<n>We contrast our results with a non-spatially resolved measurement where averaging over the photons' positions washes out the quantum interference observed in spatially resolved measurements.
  arXiv  Detail & Related papers  (2025-08-20T16:56:59Z)
• Finite-Speed-of-Light Effects in Atom Interferometry: Diffraction Mechanisms and Resonance Conditions [0.0]
  We develop a theory for finite-speed-of-light effects in atom interferometers.<n>Our analysis shows that their magnitude depends crucially on the diffraction mechanism and the specific interferometer geometry.
  arXiv  Detail & Related papers  (2025-05-05T15:28:47Z)
• Geometric Antibunching and Directional Shaping of Photon Anticorrelations [44.99833362998488]
  We find a new mechanism for photon anticorrelation, termed as geometric antibunching. This phenomenon is completely agnostic to the quantum state of the emitters.
  arXiv  Detail & Related papers  (2024-10-23T14:29:15Z)
• Realizing a spatially correlated lattice interferometer [8.81055904289318]
  Atom interferometers provide a powerful tool for measuring physical constants and testifying fundamental physics with unprecedented precision. Here, we report on realizing a Ramsey-Bord'e interferometer of coherent matter waves dressed by a moving optical lattice in the gravity direction. Our findings agree well with theoretical simulations, paving the way for high-precision interferometry with ultracold atoms.
  arXiv  Detail & Related papers  (2024-06-24T17:54:03Z)
• Analyzing the sensitivity of an atom interferometer with a phase-modulation readout scheme [0.0]
  We analytically calculate the sensitivities of an atom interferometer with typical readout schemes.<n>By using sinusoidal phase modulation, the sensitivity can surpass that obtained by the conventional phase sweeping scheme.
  arXiv  Detail & Related papers  (2024-06-06T09:50:04Z)
• Atomic diffraction from single-photon transitions in gravity and Standard-Model extensions [49.26431084736478]
  We study single-photon transitions, both magnetically-induced and direct ones, in gravity and Standard-Model extensions. We take into account relativistic effects like the coupling of internal to center-of-mass degrees of freedom, induced by the mass defect.
  arXiv  Detail & Related papers  (2023-09-05T08:51:42Z)
• Atom interferometry with coherent enhancement of Bragg pulse sequences [41.94295877935867]
  We demonstrate momentum splitting up to 200 photon recoils in an ultra-cold atom interferometer. We highlight a new mechanism of destructive interference of the losses leading to a sizeable efficiency enhancement of the beam splitters.
  arXiv  Detail & Related papers  (2023-05-16T15:00:05Z)
• Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
  Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator. We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
  arXiv  Detail & Related papers  (2021-07-23T07:30:57Z)
• Towards probing for hypercomplex quantum mechanics in a waveguide interferometer [55.41644538483948]
  We experimentally investigate the suitability of a multi-path waveguide interferometer with mechanical shutters for performing a test for hypercomplex quantum mechanics. We systematically analyse the influence of experimental imperfections that could lead to a false-positive test result.
  arXiv  Detail & Related papers  (2021-04-23T13:20:07Z)
• Semiclassical Phase Analysis for a Trapped-Atom Sagnac Interferometer [1.1278903078792915]
  A Sagnac atom interferometer can be constructed using a Bose-Einstein condensate trapped in a cylindrically symmetric harmonic potential. The interferometer output would depend only on the rotation rate of the apparatus. deviations from the ideal case can lead to spurious phase shifts.
  arXiv  Detail & Related papers  (2021-03-25T17:32:54Z)
• Symmetry allows for distinguishability in totally destructive many-particle interference [52.77024349608834]
  We investigate, in a four photon interference experiment in a laser-written waveguide structure, how symmetries control the suppression of many-body output events of a $J_x$ unitary. We show that totally destructive interference does not require mutual indistinguishability between all, but only between symmetrically paired particles.
  arXiv  Detail & Related papers  (2021-02-19T16:37:19Z)
• Tailoring multi-loop atom interferometers with adjustable momentum transfer [0.0]
  Multi-loop matter-wave interferometers are essential in quantum sensing to measure the derivatives of physical quantities in time or space. imperfections of the matter-wave mirrors create spurious paths that scramble the signal of interest. Here we demonstrate a method of adjustable momentum transfer that prevents the recombination of the spurious paths in a double-loop atom interferometer aimed at measuring rotation rates.
  arXiv  Detail & Related papers  (2020-06-15T12:46:30Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.