Gravitomagnetic field and gravitational waves

14 Jun 2023, 10:40
30m
Room "Galileo Galilei"

Room "Galileo Galilei"

Physics Department Building C
Oral Fundamental Physics tests: Gravity, Lorentz violation, general relativity, cosmology etc. General Relativity

Speaker

Matteo Luca Ruggiero (Università degli Studi di Torino)

Description

We discuss here the possibility to detect high frequency gravitational waves by exploiting gravitomagnetic effects. In the laboratory frame, using the construction of the Fermi frame, the field of a gravitational wave can be described in terms of gravito-electromagnetic fields that are transverse to the propagation direction and orthogonal to each other. In particular, the gravito-magnetic field acts on spinning particles and under suitable conditions, a gravito-magnetic resonance may appear: this phenomenon can be used to design a new type of gravitational wave detectors, based on collective spin excitations, e.g. spin waves in magnetized materials.

Primary author

Matteo Luca Ruggiero (Università degli Studi di Torino)

Co-author

Antonello Ortolan (Istituto Nazionale di Fisica Nucleare)

Presentation materials