Eur. Phys. J. D (2013) 67: 184
https://doi.org/10.1140/epjd/e2013-40146-x

Regular Article

Transfer of gravitational information through a quantum channel

State Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, P.R. China

^a e-mail: zhangbc@wipm.ac.cn

Received: 14 March 2013
Received in final form: 28 May 2013
Published online: 19 August 2013

Abstract

Gravitational information is incorporated into an atomic state by correlation of the internal and external degrees of freedom of the atom, in the present study of the atomic interferometer. Thus, it is difficult to transfer information by using a standard teleportation scheme. In this paper, we propose a novel scheme for the transfer of gravitational information through a quantum channel provided by the entangled atomic state. Significantly, the existence of a quantum channel suppresses phase noise, improving the sensitivity of the atomic interferometer. Thus, our proposal provides novel readout mechanism for the interferometer with an improved signal-to-noise ratio.