Volume 78, Number 2, April 2007
|Number of page(s)||5|
|Published online||04 April 2007|
Detection of gravitational waves —An application of relativistic quantum information theory
Department of Physics, National University of Singapore - 10 Kent Ridge Crescent, Singapore 119260, Singapore
Accepted: 7 March 2007
We show that a passing gravitational wave may influence the spin entropy and spin negativity of a system of N massive spin-() particles, in a way that is characteristic of the radiation. We establish the specific conditions under which this effect may be nonzero. The change in spin entropy and negativity, however, is extremely small. Here, we propose and show that this effect may be amplified through entanglement swapping. Relativistic quantum information theory may have a contribution towards the detection of gravitational waves.
PACS: 03.65.Ud – Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.) / 03.67.-a – Quantum information
© Europhysics Letters Association, 2007
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