Non-reciprocal Interferometers for Matter Waves

Researches on Non - standard Optics for Advanced Gravitational Waves Interferometers

One hertz seismic attenuation for low frequency gravitational waves interferometers

This article describes a mechanical vertical attenuation system capable to provide large attenuation factors above 1Hz. This system is derived from, and improves, the passive Geometric Anti-Spring seismic attenuation filters minimizing their vertical resonant frequency by means of a tunable electromagnetic spring mounted in parallel with the main spring. The tunable spring is also used to compe...

Laser Interferometers as Dark Matter Detectors

Evan D. Hall,1 Thomas Callister,1 Valery V. Frolov,2 Holger Müller,3 Maxim Pospelov,4, 5 and Rana X Adhikari1 1California Institute of Technology, Pasadena, CA 91125, USA 2LIGO Livingston Observatory, Livingston, LA 70754, USA 3Department of Physics, 366 Le Conte Hall, University of California, Berkeley, CA 94720, USA 4Department of Physics and Astronomy, University of Victoria, Victoria, BC V8...

Searching Gravitational Waves from Pulsars, Using Laser Beam Interferometers

We use recent population synthesis results to investigate the distribution of pulsars in the frequency space, having a gravitational strain high enough to be detected by the future generations of laser beam interferometers. We find that until detectors become able to recover the entire population, the frequency distribution of the ’detectable’ population will be very dependent on the detector n...

Direct Detection of Dark Matter with Space-based Laser Interferometers

Dark matter pervades the Solar System, free-streaming at the local Galactic orbital velocity of the halo with a space density of ∼ 9 × 10 gm cm. As these objects pass through the Solar system, they perturb gravitationally, and thus very weakly, all nearby inertial masses. Making use of this, we propose an approach to the direct detection of dark matter at previously inaccessible intermediate ma...