title: Quantum Emulation of Gravitational Waves.
abstract: 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 prove that the propagation of small amplitude gravitational waves in a curved spacetime is equivalent to the propagation of a subspace of electromagnetic states. We use this result to propose the use of entangled photons to emulate the evolution of gravitational waves in curved spacetimes by means of experimental electromagnetic setups featuring metamaterials.
authors.affiliation: 1] Department of Physics &Astronomy, Macquarie University, Australia [2] ARC Center for Engineered Quantum Systems, Macquarie University, North Ryde, New South Wales 2109, Australia [3] Institute of Nanotechnology, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany.
authors.forename: Ivan
authors.initials: I
authors.lastname: Fernandez-Corbaton
authors.affiliation: 1] Department of Physics &Astronomy, Macquarie University, Australia [2] ARC Center for Engineered Quantum Systems, Macquarie University, North Ryde, New South Wales 2109, Australia.
authors.forename: Mauro
authors.initials: M
authors.lastname: Cirio
authors.affiliation: 1] Department of Physics &Astronomy, Macquarie University, Australia [2] ARC Center for Engineered Quantum Systems, Macquarie University, North Ryde, New South Wales 2109, Australia.
authors.forename: Alexander
authors.initials: A
authors.lastname: Büse
authors.affiliation: Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, E-48080 Bilbao, Spain.
authors.forename: Lucas
authors.initials: L
authors.lastname: Lamata
authors.affiliation: 1] Department of Physical Chemistry, University of the Basque Country UPV/EHU, Apartado 644, E-48080 Bilbao, Spain [2] IKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Spain.
authors.forename: Enrique
authors.initials: E
authors.lastname: Solano
authors.affiliation: 1] Department of Physics &Astronomy, Macquarie University, Australia [2] ARC Center for Engineered Quantum Systems, Macquarie University, North Ryde, New South Wales 2109, Australia.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Molina-Terriza