Challenges and opportunities of gravitational-wave searches at MHz to GHz frequencies
The first direct measurement of gravitational waves by the LIGO and Virgo collaborations
has opened up new avenues to explore our Universe. This white paper outlines the …
has opened up new avenues to explore our Universe. This white paper outlines the …
Detecting high-frequency gravitational waves with microwave cavities
We give a detailed treatment of electromagnetic signals generated by gravitational waves
(GWs) in resonant cavity experiments. Our investigation corrects and builds upon previous …
(GWs) in resonant cavity experiments. Our investigation corrects and builds upon previous …
Novel search for high-frequency gravitational waves with low-mass axion haloscopes
Gravitational waves (GWs) generate oscillating electromagnetic effects in the vicinity of
external electric and magnetic fields. We discuss this phenomenon with a particular focus on …
external electric and magnetic fields. We discuss this phenomenon with a particular focus on …
Detecting single gravitons with quantum sensing
The quantization of gravity is widely believed to result in gravitons–particles of discrete
energy that form gravitational waves. But their detection has so far been considered …
energy that form gravitational waves. But their detection has so far been considered …
New horizons: Scalar and vector ultralight dark matter
The last decade has seen unprecedented effort in dark matter model building at all mass
scales coupled with the design of numerous new detection strategies. Transformative …
scales coupled with the design of numerous new detection strategies. Transformative …
Proximitized materials
Advances in scaling down heterostructures and having an improved interface quality
together with atomically thin two-dimensional materials suggest a novel approach to …
together with atomically thin two-dimensional materials suggest a novel approach to …
Hunt for light primordial black hole dark matter with ultrahigh-frequency gravitational waves
G Franciolini, A Maharana, F Muia - Physical Review D, 2022 - APS
Light primordial black holes may comprise a dominant fraction of the dark matter in our
Universe. This paper critically assesses whether planned and future gravitational wave …
Universe. This paper critically assesses whether planned and future gravitational wave …
High-frequency gravitational wave detection via optical frequency modulation
High frequency gravitational waves can be detected by observing the frequency modulation
they impart on photons. We discuss fundamental limitations to this method related to the fact …
they impart on photons. We discuss fundamental limitations to this method related to the fact …
The challenge of ruling out inflation via the primordial graviton background
S Vagnozzi, A Loeb - The Astrophysical Journal Letters, 2022 - iopscience.iop.org
Recent debates around the testability of the inflationary paradigm raise the question of how
to model-independently discriminate it from competing scenarios. We argue that a detection …
to model-independently discriminate it from competing scenarios. We argue that a detection …
The primordial black holes that disappeared: connections to dark matter and MHz-GHz gravitational Waves
In the post-LIGO era, there has been a lot of focus on primordial black holes (PBHs) heavier
than∼ 10 15 g as potential dark matter (DM) candidates. We point out that the branch of the …
than∼ 10 15 g as potential dark matter (DM) candidates. We point out that the branch of the …