Rare Events Detected with a Bulk Acoustic Wave High Frequency Gravitational Wave Antenna

Abstract

This work describes the operation of a High Frequency Gravitational Wave detector based on a cryogenic Bulk Acoustic Wave (BAW) cavity and reports observation of rare events during 153 days of operation over two seperate experimental runs (Run 1 and Run 2). In both Run 1 and Run 2 two modes were simultaneously monitored. Across both runs, the 3rd overtone of the fast shear mode (3B) operating at 5.506 MHz was monitored, while in Run 1 the second mode was chosen to be the 5th OT of the slow shear mode (5C) operating at 8.392 MHz. However, in Run 2 the second mode was selected to be closer in frequency to the first mode, and chosen to be the 3rd overtone of the slow shear mode (3C) operating at 4.993 MHz. Two strong events were observed as transients responding to energy deposition within acoustic modes of the cavity. The first event occurred during Run 1 on the 12/05/2019 (UTC), and was observed in the 5.506 MHz mode, while the second mode at 8.392 MHz observed no event. During Run 2, a second event occurred on the 27/11/2019(UTC) and was observed by both modes. Timing of the events were checked against available environmental observations as well as data from other detectors. Various possibilities explaining the origins of the events are discussed.

4 pages, 4 figures

References in corpus (14)

• Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies
• Search for a stochastic background of 100-MHz gravitational waves with laser interferometers
• Laser-interferometric Detectors for Gravitational Wave Background at 100 MHz : Detector Design and Sensitivity
• Potential of radio telescopes as high-frequency gravitational wave detectors
• The Axion Quark Nugget Dark Matter Model: Size Distribution and Survival Pattern
• Detecting Planetary-mass Primordial Black Holes with Resonant Electromagnetic Gravitational Wave Detectors
• Gravitational Waves from Primordial Magnetic Fields via Photon-Graviton Conversion
• Observation of the Fundamental Nyquist Noise Limit in an Ultra-High $Q$-Factor Cryogenic Bulk Acoustic Wave Cavity
• Infrasonic, acoustic and seismic waves produced by the Axion Quark Nuggets
• Generation of Ultra-Low Power Phononic Combs
• Detection of high energy cosmic rays with the resonant gravitational wave detector NAUTILUS and EXPLORER
• Searching for MHz Gravitational Waves from Harmonic Sources
• Searching for new physics with a levitated-sensor-based gravitational-wave detector
• Jump Chaotic Behaviour of Ultra Low Loss Bulk Acoustic Wave Cavities

Cited by in corpus (34)

• A novel search for high-frequency gravitational waves with low-mass axion haloscopes
• Hunt for Light Primordial Black Hole Dark Matter with Ultra-High-Frequency Gravitational Waves
• Detecting single gravitons with quantum sensing
• MAGO2.0: Electromagnetic Cavities as Mechanical Bars for Gravitational Waves
• The Primordial Black Holes that Disappeared: Connections to Dark Matter and MHz-GHz Gravitational Waves
• Graviton detection and the quantization of gravity
• Ultrahigh frequency primordial gravitational waves beyond the kHz: The case of cosmic strings
• Memory burden effect mimics reheating signatures on SGWB from ultra-low mass PBH domination
• Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
• Cavity Detection of Gravitational Waves: Where Do We Stand?
• Comparing Instrument Spectral Sensitivity of Dissimilar Electromagnetic Haloscopes to Axion Dark Matter and High Frequency Gravitational Waves
• Searching for High Frequency Gravitational Waves with Phonons
• The Multi-mode Acoustic Gravitational Wave Experiment: MAGE
• Enhanced primordial gravitational waves from a stiff post-inflationary era due to an oscillating inflaton
• Deterministic multi-phonon entanglement between two mechanical resonators on separate substrates
• Did Goryachev et al. detect megahertz gravitational waves?
• Macroscopic Dark Matter Detection with Gravitational Wave Experiments
• Superconducting Levitated Detector of Gravitational Waves
• Detecting kHz gravitons from a neutron star merger with a multi-mode resonant mass detector
• Classical (and Quantum) Heuristics for Gravitational Wave Detection
• Improved constraints on minimum length models with a macroscopic low loss phonon cavity
• Were recently reported MHz events planet mass primordial black hole mergers?
• Fast Radio Bursts signal high-frequency gravitational waves
• Correlated frequency noise in a multimode acoustic resonator
• Electro-Mechanical Tuning of High-Q Bulk Acoustic Phonon Modes at Cryogenic Temperatures
• Decoherence of surface phonons in a quantum acoustic system
• Upconversion of Phonon Modes into Microwave Photons in a Lithium Niobate Bulk Acoustic Wave Resonator Coupled to a Microwave Cavity
• Experimental Limits on Planetary Mass Primordial Black Hole Mergers
• An array of bulk-acoustic-wave sensors as a high-frequency antenna for gravitational waves
• Low Temperature Properties of Low-Loss Macroscopic Lithium Niobate Bulk Acoustic Wave Resonators
• Search for high-frequency gravitational waves via re-analysis of cavity axion data
• Quantum sensing of high-frequency gravitational waves with ion crystals
• Prospects for High-Frequency Gravitational-Wave Detection with GEO600
• Primordial Black Holes: A Review of Formation and Evolution