Atom Interferometry with Transverse Optical Modes

• URL: http://arxiv.org/abs/2606.04430v3
• Date: Sun, 07 Jun 2026 04:47:32 GMT
• Title: Atom Interferometry with Transverse Optical Modes
• Abstract summary: We use the helical phase windings of Hypergeometric Gaussian beams for Ramsey interferometry with ensembles of ballistically-expanding cold Rb87 atoms.<n>We show that the interferometer can measure rotations induced by a motor with a sensitivity that scales linearly with orbital angular momentum and interferometer time.
• Score: 0.6627604416179598
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: We experimentally demonstrate atom interferometry using the transverse phase profile of an optical mode. As proof-of-principle, we use the helical phase windings of Hypergeometric Gaussian beams for Ramsey interferometry with ensembles of ballistically-expanding cold Rb87 atoms, and we show that the interferometer can measure rotations induced by a motor with a sensitivity that scales linearly with orbital angular momentum and interferometer time. We characterize the thermal decoherence of the interferometer, deriving and experimentally confirming a closed-form expression for the spatially-varying interferometer visibility arising near the singularity of the helical phase winding, motivating the use of condensed atoms in ring-shaped traps.

Related papers

• Robust AC vector sensing at zero magnetic field with pentacene [45.7221176995052]
  Quantum sensors based on electronic spins have emerged as powerful probes of microwave-frequency fields.<n>Here, we demonstrate microwave vector magnetometry using the photoexcited spin triplet of pentacene molecules.
  arXiv  Detail & Related papers  (2025-12-06T03:49:12Z)
• Rejection of wavefront aberrations in an atomic gradiometer [0.0]
  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.
  arXiv  Detail & Related papers  (2025-11-10T12:04:31Z)
• On neutron holography, neutron interferometry and neutron orbital angular momentum [0.0]
  A neutron Laue crystal interferometer has been reported to demonstrate neutron holography of a spiral phase plate.<n>There are serious doubts about the method for generating neutron orbital angular momentum with a crystal interferometer.<n>We present computer simulations showing that the images presented as holograms can be computed as conventional interference patterns.
  arXiv  Detail & Related papers  (2025-05-19T10:54:53Z)
• 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)
• Probing pair correlations in Fermi gases with Ramsey-Bragg interferometry [41.94295877935867]
  We propose an interferometric method to probe pair correlations in a gas of spin-1/2 fermions. The method consists of a Ramsey sequence where both spin states of the Fermi gas are set in a superposition of a state at rest and a state with a large recoil velocity. The off-diagonal long-range order is directly reflected in the behavior of the interferometric signal for long interrogation times.
  arXiv  Detail & Related papers  (2023-12-21T15:46:29Z)
• Atom interferometers in weakly curved spacetimes using Bragg diffraction and Bloch oscillations [0.34583402347576786]
  We present a systematic approach to determine all relativistic phases up to $mathcalO(c-2)$ in light-pulse atom interferometers in weakly curved spacetime. Our analysis is derived from first principles using the parameterized post-Newtonian formalism.
  arXiv  Detail & Related papers  (2023-10-05T17:39:53Z)
• 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)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Fano interference in quantum resonances from angle-resolved elastic scattering [62.997667081978825]
  We show that probing the angular dependence of the cross section allows us to unveil asymmetric Fano profiles in a single channel shape resonance. We observe a shift in the peak of the resonance profile in the elastic collisions between metastable helium and deuterium molecules.
  arXiv  Detail & Related papers  (2021-05-12T20:41:25Z)
• Auto-heterodyne characterization of narrow-band photon pairs [68.8204255655161]
  We describe a technique to measure photon pair joint spectra by detecting the time-correlation beat note when non-degenerate photon pairs interfere at a beamsplitter. The technique is well suited to characterize pairs of photons, each of which can interact with a single atomic species.
  arXiv  Detail & Related papers  (2021-01-08T18:21:30Z)

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.