Atomic diffraction from single-photon transitions in gravity and Standard-Model extensions

• URL: http://arxiv.org/abs/2309.02051v2
• Date: Wed, 15 Nov 2023 10:21:22 GMT
• Title: Atomic diffraction from single-photon transitions in gravity and Standard-Model extensions
• Authors: Alexander Bott, Fabio Di Pumpo, Enno Giese
• Abstract summary: 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.
• Score: 49.26431084736478
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Single-photon transitions are one of the key technologies for designing and operating very-long-baseline atom interferometers tailored for terrestrial gravitational-wave and dark-matter detection. Since such setups aim at the detection of relativistic and beyond-Standard-Model physics, the analysis of interferometric phases as well as of atomic diffraction must be performed to this precision and including these effects. In contrast, most treatments focused on idealized diffraction so far. Here, we study single-photon transitions, both magnetically-induced and direct ones, in gravity and Standard-Model extensions modeling dark matter as well as Einstein-equivalence-principle violations. We take into account relativistic effects like the coupling of internal to center-of-mass degrees of freedom, induced by the mass defect, as well as the gravitational redshift of the diffracting light pulse. To this end, we also include chirping of the light pulse required by terrestrial setups, as well as its associated modified momentum transfer for single-photon transitions.

Related papers

• Realisation of a Coherent and Efficient One-Dimensional Atom [0.15274583259797847]
  A coherent and efficiently coupled one-dimensional atom provides a large nonlinearity, enabling photonic quantum gates. Here, we use a semiconductor quantum dot in an open microcavity as an implementation of a one-dimensional atom. Our results pave the way towards the creation of exotic photonic states and two-photon phase gates.
  arXiv  Detail & Related papers  (2024-02-19T21:48:12Z)
• Atom interferometer as a freely falling clock for time-dilation measurements [0.14188748936919127]
  Light-pulse atom interferometers based on single-photon transitions are a promising tool for gravitational-wave detection in the mid-frequency band. We present a novel measurement scheme that enables their use as freely falling clocks directly measuring relativistic time-dilation effects.
  arXiv  Detail & Related papers  (2024-02-16T20:38:03Z)
• All-optical modulation with single-photons using electron avalanche [69.65384453064829]
  We demonstrate all-optical modulation using a beam with single-photon intensity. Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
  arXiv  Detail & Related papers  (2023-12-18T20:14:15Z)
• Directional spontaneous emission in photonic crystal slabs [49.1574468325115]
  Spontaneous emission is a fundamental out-of-equilibrium process in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. One way to modify these photon-mediated interactions is to alter the dipole radiation patterns of the emitter, e.g., by placing photonic crystals near them. Our study delves into the interaction between these directional emission patterns and the aforementioned variables, revealing the untapped potential to fine-tune collective quantum optical phenomena.
  arXiv  Detail & Related papers  (2023-12-04T15:35:41Z)
• Nonlinear Quantum Photonics with a Tin-Vacancy Center Coupled to a One-Dimensional Diamond Waveguide [0.0]
  We integrate tin-vacancy centers in a diamond waveguide. We observe single-emitter induced extinction of the transmitted light up to 25%. We demonstrate fully tunable interference between the reflected single-photon field and laser light back-scattered at the fiber end.
  arXiv  Detail & Related papers  (2023-11-21T19:00:02Z)
• Optimal baseline exploitation in vertical dark-matter detectors based on atom interferometry [50.06952271801328]
  Several terrestrial detectors for gravitational waves and dark matter based on long-baseline atom interferometry are currently in the final planning stages or already under construction. We show that resonant-mode detectors based on multi-diamond fountain gradiometers achieve the optimal, shot-noise limited, sensitivity if their height constitutes 20% of the available baseline.
  arXiv  Detail & Related papers  (2023-09-08T08:38:24Z)
• A large-momentum-transfer matter-wave interferometer to measure the effect of gravity on positronium [0.0]
  A Mach-Zehnder matter-wave interferometer has been designed to operate with single-photon transitions. Within less than one year, the acquisition time is sufficient to achieve a 10% accuracy level in measuring positronium gravitational acceleration.
  arXiv  Detail & Related papers  (2023-03-21T12:29:33Z)
• Entangling remote qubits using the single-photon protocol: an in-depth theoretical and experimental study [0.0]
  In the single-photon, protocol entanglement is heralded by generation of qubit-photon entangled states and subsequent detection of a single photon behind a beam splitter. We develop an extensive theoretical model and tailor it to our experimental setting, based on nitrogen-vacancy centers in diamond. We find that imperfect optical excitation can lead to a detection-arm-dependent entangled state fidelity and rate.
  arXiv  Detail & Related papers  (2022-08-15T21:56:40Z)
• Ultra-long photonic quantum walks via spin-orbit metasurfaces [52.77024349608834]
  We report ultra-long photonic quantum walks across several hundred optical modes, obtained by propagating a light beam through very few closely-stacked liquid-crystal metasurfaces. With this setup we engineer quantum walks up to 320 discrete steps, far beyond state-of-the-art experiments.
  arXiv  Detail & Related papers  (2022-03-28T19:37:08Z)
• Light propagation and atom interferometry in gravity and dilaton fields [58.80169804428422]
  We study the modified propagation of light used to manipulate atoms in light-pulse atom interferometers. Their interference signal is dominated by the matter's coupling to gravity and the dilaton. We discuss effects from light propagation and the dilaton on different atom-interferometric setups.
  arXiv  Detail & Related papers  (2022-01-18T15:26:19Z)

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.