Atom interferometers (AIFs) are highly precise inertial sensors and are considered promising instruments for the detection of gravitational waves (GWs) and certain dark matter (DM) candidates in the mid-frequency band. While GW detection with AIFs was initially proposed for space-based experiments with baselines spanning thousands of kilometers, recent developments suggest that terrestrial setups with baselines of at least 100 meters may also be capable of detecting GWs. In this work, we analytically derive the GW phase response formula of a ground detector, find an additional term compared to the existing literature and check it our findings numerically. Based on this treatment, we analyze the optimal geometric parameters for earth-bound AIF experiments. Subsequently, we numerically simulate GW detection schemes for these optimized interferometers using an open-source Python algorithm. Numerical simulations of these schemes have are not available to the community, yet crucial for the accurate modeling of noise and non-trivial gravitational backgrounds.
We investigate how site-dependent Newtonian noise configurations affect the scientific performance of the Einstein Telescope (ET), a third-generation gravitational-wave observatory. We compare the baseline triangular and 2L detector geometries, with arm lengths of 10km and 15km, respectively, under three site-dependent...
F. Crescimbeni, M. Di Giovanni, D. Rozza et al.· 1 citation
Ground-based interferometers detect gravitational waves down to only a few hertz; below that threshold, seismic motion on Earth makes further sensitivity impossible. Yet the loudest and most scientifically valuable sources in the Universe—merging supermassive black holes, extreme-mass-ratio inspirals, and the vast popu...
Aaryan Tanna· International journal of com...· 0 citations
Gravitational-wave (GW) observations offer a powerful probe of new fundamental fields. One well-motivated source is black hole (BH)--boson cloud systems, in which an ultralight scalar field forms a cloud around a rotating BH via superradiance and emits long-lived nearly monochromatic GWs. In this work, we compute the s...
Quantum mechanics and general relativity are remarkably successful, yet their joint predictions remain beyond direct experimental reach. Photonic interferometers operating in a gravitational field offer a promising route to test this regime: gravitational redshift differentiates photon propagation between vertically se...
Jerzy Paczos, P. Grochowski, N. Bruno et al.· 0 citations
We investigate gravitational wave (GW) signatures from extreme-mass-ratio inspirals (EMRIs) around a Bardeen black hole, modeling the small object as a test particle, and provide a framework for probing strong-field spacetime geometry. We first present the equations of motion for test particles around a Bardeen black h...
Unambiguously detecting a gravitational-wave background (GWB) in pulsar-timing data requires a robust detection statistic. The pulsar timing community currently relies heavily on the cross-correlation-based"optimal statistic."Its design was motivated to avoid false-positive detections from unmodeled pulsar red noise. H...
K. Grunthal, E. Thrane, R. van Haasteren et al.· 0 citations
We use cookies to run the site and, with your consent, for analytics and to show ads.
See our Cookie Policy.
