Search for oscillating fundamental constants using a paired detector and vibrational spectroscopy

• URL: http://arxiv.org/abs/2502.19248v1
• Date: Wed, 26 Feb 2025 15:53:55 GMT
• Title: Search for oscillating fundamental constants using a paired detector and vibrational spectroscopy
• Authors: René Oswald, Victor Vogt, Stephan Schiller,
• Abstract summary: Ultralight dark matter (UDM) may manifest itself through oscillating fundamental constants of normal matter.<n>We propose and demonstrate paired detectors: two nominally identical detectors whose signals are synchronously recorded.<n>The cross-spectrum of the two individual beat time series is then analyzed for UDM signatures.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Ultralight dark matter (UDM) may manifest itself through oscillating fundamental constants of normal matter. These can be experimentally searched for by implementing two dissimilar oscillators producing a beat between their frequencies and analyzing the beat-frequency time series for the presence of any temporal oscillations. Typically, the time series of such a detector contains contributions from nonstationary noise. In order to reduce the influence of such noise we propose and demonstrate paired detectors: two nominally identical detectors whose signals are synchronously recorded. The cross-spectrum of the two individual beat time series is then analyzed for UDM signatures. This approach permits us to suppress spurious signals appearing in uncorrelated fashion in either detector. We furthermore demonstrate detectors that are based on a vibrational molecular transition, which are advantageous due to their larger sensitivity to oscillations of the nuclear masses. The analysis of 274 hours of data yielded improved bounds for the coupling constants of UDM to nuclear mass and to electron mass in the frequency ranges 10-500 Hz and 10-122 kHz, with improvement factors between 6 and 10. These bounds are currently the strongest. Similar bounds are obtained for the fine-structure constant. The present approach may be generalized to large ensembles of detectors.

Related papers

• Lifetime-limited Gigahertz-frequency Mechanical Oscillators with Millisecond Coherence Times [4.2502924738276855]
  Coherence times needed for quantum applications require exquisitely sensitive new techniques to probe the material origins of phonon decoherence. We combine non-invasive laser spectroscopy techniques with materials analysis to identify key sources of phonon decoherence in crystalline media. We identify a path to > 100 ms coherence times as the basis for high-frequency quantum memories.
  arXiv  Detail & Related papers  (2025-04-10T07:41:47Z)
• Continuous drive heterodyne microwave sensing with spin qubits in hexagonal boron nitride [5.658970628961091]
  We present a control scheme based on a continuous microwave drive that extends spin towards the effective $T approx 12T$ limit. The scheme achieves an amplitude sensitivity of $eta approx 3-5 :mathrmmu T sqrtHz$ and phase sensitivity of $eta_phi approx 0.076 :mathrmrads sqrtHz$.
  arXiv  Detail & Related papers  (2024-06-24T21:24:45Z)
• Two-tone spectroscopy for the detection of two-level systems in superconducting qubits [108.40985826142428]
  Two-level systems (TLS) of unclear physical origin are a major contributor to decoherence in superconducting qubits. We propose a novel method that requires only a microwave drive and dispersive readout, and thus also works fixed-frequency qubits.
  arXiv  Detail & Related papers  (2024-04-22T09:53:00Z)
• Attosecond Rabi Oscillations in High Harmonic Generation Resonantly Driven by Extreme Ultraviolet Laser Fields [36.37753021661126]
  High-order harmonic generation driven by intense extreme ultraviolet (EUV) fields merges quantum optics and attosecond science. We theoretically investigate ultrafast resonant dynamics during the interaction of He atoms with strong EUV pulses.
  arXiv  Detail & Related papers  (2024-04-05T12:17:40Z)
• Quantum spectral analysis by continuous measurement of Landau-Zener transitions [0.0]
  We demonstrate the simultaneous estimation of signal frequency and amplitude by a single quantum sensor in a single experimental shot. We sense a magnetic signal with $20textpT$ precision in amplitude, and near-transform-limited precision in frequency, in a single $300textms$ sweep from $7$ to $13textkHz$. The protocol realizes a swept-sine quantum spectrum analyzer, potentially sensing hundreds or thousands of channels with a single quantum sensor.
  arXiv  Detail & Related papers  (2023-06-02T15:37:26Z)
• A driven quantum superconducting circuit with multiple tunable degeneracies [0.0]
  We present the experimental discovery of multiple simultaneous degeneracies in the spectrum of a Kerr oscillator subjected to a squeezing drive. Remarkably, these degeneracies can be turned on-and-off on demand, and their number is tunable.
  arXiv  Detail & Related papers  (2022-11-08T23:15:29Z)
• Characterizing low-frequency qubit noise [55.41644538483948]
  Fluctuations of the qubit frequencies are one of the major problems to overcome on the way to scalable quantum computers. The statistics of the fluctuations can be characterized by measuring the correlators of the outcomes of periodically repeated Ramsey measurements. This work suggests a method that allows describing qubit dynamics during repeated measurements in the presence of evolving noise.
  arXiv  Detail & Related papers  (2022-07-04T22:48:43Z)
• Dynamics of Transmon Ionization [94.70553167084388]
  We numerically explore the dynamics of a driven transmon-resonator system under strong and nearly resonant measurement drives. We find clear signatures of transmon ionization where the qubit escapes out of its cosine potential.
  arXiv  Detail & Related papers  (2022-03-21T18:00:15Z)
• Frequency fluctuations of ferromagnetic resonances at milliKelvin temperatures [50.591267188664666]
  Noise is detrimental to device performance, especially for quantum coherent circuits. Recent efforts have demonstrated routes to utilizing magnon systems for quantum technologies, which are based on single magnons to superconducting qubits. Researching the temporal behavior can help to identify the underlying noise sources.
  arXiv  Detail & Related papers  (2021-07-14T08:00:37Z)
• Quantum harmonic oscillator spectrum analyzers [0.0]
  We measure the noise spectrum of a quantum harmonic oscillator from low frequency to near the resonance by sensing its response to amplitude modulated periodic drives with a qubit. We apply our method to measure the intrinsic noise spectrum of an ion trap potential in a previously unaccessed frequency range.
  arXiv  Detail & Related papers  (2020-10-20T16:47:45Z)
• Current Oscillations in Quasi-2D Charge-Density-Wave 1T-TaS2 Devices: Revisiting the "Narrow Band Noise" Concept [58.720142291102135]
  We report on current oscillations in quasi two-dimensional (2D) 1T-TaS2 charge-density-wave devices. The MHz-frequency range of the oscillations and the linear dependence of the frequency of the oscillations on the current resemble the "narrow band noise" Analysis of the biasing conditions and current indicate that the observed oscillations are related to the current instabilities due to the voltage-induced transition from the nearly commensurate to incommensurate charge-density-wave phase.
  arXiv  Detail & Related papers  (2020-02-29T22:45:46Z)

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.