[HTML][HTML] Feebly-interacting particles: FIPs 2022 workshop report

C Antel, M Battaglieri, J Beacham, C Boehm… - The European Physical …, 2023 - Springer
Particle physics today faces the challenge of explaining the mystery of dark matter, the origin
of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent …

Detecting high-frequency gravitational waves with microwave cavities

A Berlin, D Blas, RT D'Agnolo, SAR Ellis, R Harnik… - Physical Review D, 2022 - APS
We give a detailed treatment of electromagnetic signals generated by gravitational waves
(GWs) in resonant cavity experiments. Our investigation corrects and builds upon previous …

Observation of a gravitational Aharonov-Bohm effect

C Overstreet, P Asenbaum, J Curti, M Kim… - Science, 2022 - science.org
Gravity curves space and time. This can lead to proper time differences between freely
falling, nonlocal trajectories. A spatial superposition of a massive particle is predicted to be …

Long-lived Bell states in an array of optical clock qubits

N Schine, AW Young, WJ Eckner, MJ Martin… - Nature Physics, 2022 - nature.com
The generation of long-lived entanglement in optical atomic clocks is one of the main goals
of quantum metrology. Arrays of neutral atoms, where Rydberg-based interactions may …

Entanglement-enhanced matter-wave interferometry in a high-finesse cavity

GP Greve, C Luo, B Wu, JK Thompson - Nature, 2022 - nature.com
An ensemble of atoms can operate as a quantum sensor by placing atoms in a
superposition of two different states. Upon measurement of the sensor, each atom is …

Stochastic gravitational-wave backgrounds: Current detection efforts and future prospects

AI Renzini, B Goncharov, AC Jenkins, PM Meyers - Galaxies, 2022 - mdpi.com
The collection of individually resolvable gravitational wave (GW) events makes up a tiny
fraction of all GW signals that reach our detectors, while most lie below the confusion limit …

Distributed quantum sensing with mode-entangled spin-squeezed atomic states

BK Malia, Y Wu, J Martínez-Rincón, MA Kasevich - Nature, 2022 - nature.com
Quantum sensors are used for precision timekee**, field sensing and quantum
communication,–. Comparisons among a distributed network of these sensors are capable …

Pathfinder experiments with atom interferometry in the Cold Atom Lab onboard the International Space Station

JR Williams, CA Sackett, H Ahlers, DC Aveline… - Nature …, 2024 - nature.com
Deployment of ultracold atom interferometers (AI) into space will capitalize on quantum
advantages and the extended freefall of persistent microgravity to provide high-precision …

Electromagnetic cavities as mechanical bars for gravitational waves

A Berlin, D Blas, RT D'Agnolo, SAR Ellis, R Harnik… - Physical Review D, 2023 - APS
Superconducting cavities can operate analogously to Weber bar detectors of gravitational
waves, converting mechanical to electromagnetic energy. The significantly reduced …

Prospective sensitivities of atom interferometers to gravitational waves and ultralight dark matter

L Badurina, O Buchmueller, J Ellis… - … of the Royal …, 2022 - royalsocietypublishing.org
We survey the prospective sensitivities of terrestrial and space-borne atom interferometers to
gravitational waves generated by cosmological and astrophysical sources, and to ultralight …