ICE1 2014 Workshop “Información Cuántca en España-1” - Zaragoza, 2014
Emulation of gravitational waves in curved spacetimes with entangled photon states
1Department of Physics & Astronomy, Macquarie University, Australia
2ARC Center for Engineered Quantum Systems, Macquarie University, North Ryde, New South Wales 2109, Australia
3Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, E-48080 Bilbao, Spain
4IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36, 48011 Bilbao, Spain
Gravitational waves, as predicted by Einstein’s general relativity theory, appear as ripples in the fabric of spacetime traveling at the speed of light. We have formally proved that the propagation of small amplitude gravitational waves in a curved spacetime is equivalent to the propagation of a subspace of electromagnetic tensor waves. This subspace can be realized using entangled photon states. We use the result to propose a path to emulate the propagation of gravitational waves in curved spacetimes by means of experimental electromagnetic setups featuring metamaterials.