Related papers: A single-photon large-momentum-transfer atom interferometry scheme for Sr or Yb atoms with application to determining the fine-structure constant

A single-photon large-momentum-transfer atom interferometry scheme for Sr or Yb atoms with application to determining the fine-structure constant

URL: http://arxiv.org/abs/2403.10225v2
Date: Mon, 3 Jun 2024 16:58:27 GMT
Title: A single-photon large-momentum-transfer atom interferometry scheme for Sr or Yb atoms with application to determining the fine-structure constant
Authors: Jesse S. Schelfhout, Thomas M. Hird, Kenneth M. Hughes, Christopher J. Foot,
Abstract summary: We propose an intermediate-scale differential atom interferometer to measure the photon-recoil of neutral atomic species with a single-photon optical clock transition. For Sr and Yb, we find an atom interferometer of height 3m to be sufficient for an absolute mass measurement precision of $Delta m / m sim 1times 10-11$ with current technology.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: The leading experimental determinations of the fine-structure constant, $\alpha$, currently rely on atomic photon-recoil measurements from Ramsey-Bord\'e atom interferometry with large momentum transfer to provide an absolute mass measurement. We propose an experimental scheme for an intermediate-scale differential atom interferometer to measure the photon-recoil of neutral atomic species with a single-photon optical clock transition. We calculate trajectories for our scheme that optimise the recoil phase while nullifying the undesired gravity-gradient phase by considering independently launching two clouds of ultracold atoms with the appropriate initial conditions. For Sr and Yb, we find an atom interferometer of height 3m to be sufficient for an absolute mass measurement precision of $\Delta m / m \sim 1\times 10^{-11}$ with current technology. Such a precise measurement (the first of its kind for Sr or Yb) would halve the uncertainty in $\alpha$ -- an uncertainty that would no longer be limited by an absolute mass measurement. The removal of this limitation would allow the uncertainty in $\alpha$ to be reduced by a factor of 10 by corresponding improvements in relative mass measurements, thus paving the way for higher-precision tests of the Standard Model of particle physics.

Related papers

An entanglement-enhanced atomic gravimeter [0.0]
We present a gravimeter based on Bose-Einstein condensates with a sensitivity of $-1.7+0.4_-0.5,$dB beyond the standard quantum limit. Interferometry with Bose-Einstein condensates combined with delta-collimation minimizes atom loss in and improves scalability of the interferometer to very-long baseline atom interferometers.
arXiv Detail & Related papers (2024-04-29T12:57:01Z)
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)
Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry [45.73541813564926]
We study the interplay of the quantum center-of-mass $-$ that can become delocalized $-$ together with the internal clock transitions. We show at the example of a Gaussian laser beam that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields.
arXiv Detail & Related papers (2023-09-25T18:00:03Z)
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)
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)
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)
Quantifying n-photon indistinguishability with a cyclic integrated interferometer [40.24757332810004]
We report on a universal method to measure the genuine indistinguishability of n-photons. Our approach relies on a low-depth cyclic multiport interferometer with N = 2n modes. We experimentally demonstrate this technique for a 8-mode integrated interferometer fabricated using femtosecond laser micromachining.
arXiv Detail & Related papers (2022-01-31T16:30:52Z)
A quantum ring gyroscope based on coherence de Broglie waves [0.0]
In a Mach-Zenhder interferometer (MZI), the highest precision for a measurement error is given by vacuum fluctuations of quantum mechanics. We propose another method for the high precision measurement overcoming the Heisenberg photon-phase relation. For a potential application of the proposed method, a quantum ring gyroscope is presented.
arXiv Detail & Related papers (2021-11-05T02:23:47Z)
Enhanced nonlinear quantum metrology with weakly coupled solitons and particle losses [58.720142291102135]
We offer an interferometric procedure for phase parameters estimation at the Heisenberg (up to 1/N) and super-Heisenberg scaling levels. The heart of our setup is the novel soliton Josephson Junction (SJJ) system providing the formation of the quantum probe. We illustrate that such states are close to the optimal ones even with moderate losses.
arXiv Detail & Related papers (2021-08-07T09:29:23Z)
Photon-mediated Stroboscopic Quantum Simulation of a $\mathbb{Z}_{2}$ Lattice Gauge Theory [58.720142291102135]
Quantum simulation of lattice gauge theories (LGTs) aims at tackling non-perturbative particle and condensed matter physics. One of the current challenges is to go beyond 1+1 dimensions, where four-body (plaquette) interactions, not contained naturally in quantum simulating devices, appear. We show how to prepare the ground state and measure Wilson loops using state-of-the-art techniques in atomic physics.
arXiv Detail & Related papers (2021-07-27T18:10:08Z)

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