Novel approach to neutron electric dipole moment search using weak measurement

• URL: http://arxiv.org/abs/2002.11731v3
• Date: Mon, 17 May 2021 12:07:54 GMT
• Title: Novel approach to neutron electric dipole moment search using weak measurement
• Authors: Daiki Ueda, Teppei Kitahara
• Abstract summary: We propose a novel approach in a search for the neutron electric dipole moment (EDM) by taking advantage of signal amplification in a weak measurement, known as weak value amplification. We show that the weak value amplification occurs where the signal is enhanced by up to two orders of magnitude, and demonstrate a potential sensitivity of the proposed setup to the neutron EDM.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We propose a novel approach in a search for the neutron electric dipole moment (EDM) by taking advantage of signal amplification in a weak measurement, known as weak value amplification. Considering an analogy to the weak measurement that can measure the spin magnetic moment interaction, we examine an experimental setup with a polarized neutron beam through an external electric field with spatial gradient, where the signal is sensitive to the EDM interaction. In particular, a dedicated analysis of effects from impurities in pre- and post-selections is performed. We show that the weak value amplification occurs where the signal is enhanced by up to two orders of magnitude, and demonstrate a potential sensitivity of the proposed setup to the neutron EDM.

Related papers

• Voltage and power-frequency electric field measurements with Rydberg-atom interferometry [7.607091812795777]
  We present a Rydberg-atom interferometry-based technique for voltage measurement between electrodes embedded in an atomic vapor cell. We extend the technique to power-frequency (PF) electric field measurements by exploiting the quasi-static approximation-valid. These advancements have direct implications for traceable voltage measurements and non-invasive characterization of PF fields near high-voltage infrastructure.
  arXiv  Detail & Related papers  (2025-04-13T11:33:58Z)
• A New Bite Into Dark Matter with the SNSPD-Based QROCODILE Experiment [55.46105000075592]
  We present the first results from the Quantum Resolution-d Cryogenic Observatory for Dark matter Incident at Low Energy (QROCODILE) The QROCODILE experiment uses a microwire-based superconducting nanowire single-photon detector (SNSPD) as a target and sensor for dark matter scattering and absorption. We report new world-leading constraints on the interactions of sub-MeV dark matter particles with masses as low as 30 keV.
  arXiv  Detail & Related papers  (2024-12-20T19:00:00Z)
• Novel spin-precession method for sensitive EDM searches [0.0]
  We demonstrate a spin-precession method to observe and analyze multi-level coherence between all hyperfine levels in barium monofluoride. The signal is sensitive to the state-preparation Rabi frequency and external electric and magnetic fields applied in searches for a permanent electric dipole moment.
  arXiv  Detail & Related papers  (2023-03-11T12:31:40Z)
• Simulation of ODMR Spectra from Nitrogen-Vacancy Ensembles in Diamond for Electric Field Sensing [0.0]
  We present an open source simulation tool that models the influence of arbitrary electric and magnetic fields on the electronic and nuclear spin states of NV ensembles. Specifically, the code computes the transition strengths and predicts the sensitivity under shot-noise-limited optically-detected magnetic resonance. We show that our code can be used to optimize sensitivity in situations where usual arguments based on neglecting terms in the full Hamiltonian would give sub-optimal results.
  arXiv  Detail & Related papers  (2023-01-10T18:16:12Z)
• Sensing of magnetic field effects in radical-pair reactions using a quantum sensor [50.591267188664666]
  Magnetic field effects (MFE) in certain chemical reactions have been well established in the last five decades. We employ elaborate and realistic models of radical-pairs, considering its coupling to the local spin environment and the sensor. For two model systems, we derive signals of MFE detectable even in the weak coupling regime between radical-pair and NV quantum sensor.
  arXiv  Detail & Related papers  (2022-09-28T12:56:15Z)
• Probing dynamics of a two-dimensional dipolar spin ensemble using single qubit sensor [62.997667081978825]
  We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal. We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder. Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
  arXiv  Detail & Related papers  (2022-07-21T18:00:17Z)
• Electrical readout microwave-free sensing with diamond [0.0]
  Photoelectric readout of ground-state cross-relaxation features serves as a method for measuring electron spin resonance spectra of nanoscale electronic environments. This approach may offer potential solutions for determining spin densities and characterizing local environment.
  arXiv  Detail & Related papers  (2022-01-05T19:40:10Z)
• A background-free optically levitated charge sensor [50.591267188664666]
  We introduce a new technique to model and eliminate dipole moment interactions limiting the performance of sensors employing levitated objects. As a demonstration, this is applied to the search for unknown charges of a magnitude much below that of an electron. As a by-product of the technique, the electromagnetic properties of the levitated objects can also be measured on an individual basis.
  arXiv  Detail & Related papers  (2021-12-20T08:16:28Z)
• Controlled coherent dynamics of [VO(TPP)], a prototype molecular nuclear qudit with an electronic ancilla [50.002949299918136]
  We show that [VO(TPP)] (vanadyl tetraphenylporphyrinate) is a promising system suitable to implement quantum computation algorithms. It embeds an electronic spin 1/2 coupled through hyperfine interaction to a nuclear spin 7/2, both characterized by remarkable coherence.
  arXiv  Detail & Related papers  (2021-03-15T21:38:41Z)
• Sharp negative differential resistance from vibrational mode softening in molecular junctions [6.211723927647019]
  We unravel the critical role of vibrational mode softening in single-molecule electronic devices at high bias. Our results establish that vibrational mode softening is a crucial effect at high voltage, underlying NDR, a substantial diode effect, and the breakdown of current-carrying molecular junctions.
  arXiv  Detail & Related papers  (2020-05-22T19:40:01Z)
• Nanoscale electrometry based on a magnetic-field-resistant spin sensor [17.20530841924012]
  The nitrogen-vacancy (NV) center is a potential atomic-scale spin sensor for electric field sensing. We propose a robust electrometric method utilizing continuous dynamic decoupling (CDD) technique.
  arXiv  Detail & Related papers  (2020-04-09T06:57:49Z)
• Decoherence as Detector of the Unruh Effect [58.720142291102135]
  We propose a new type of the Unruh-DeWitt detector which measures the decoherence of the reduced density matrix of the detector interacting with the massless quantum scalar field. We find that the decoherence decay rates are different in the inertial and accelerated reference frames.
  arXiv  Detail & Related papers  (2020-03-10T21:45:09Z)
• Casimir force between Weyl semimetals in a chiral medium [68.8204255655161]
  We study the Casimir effect in a system composed of two Weyl semimetals separated by a gap filled with a chiral medium. We find that if the medium between the two WSMs is a Faraday material, a repulsive Casimir force can be obtained.
  arXiv  Detail & Related papers  (2020-01-28T14:08:45Z)

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.