Relativistic treatment of Raman light-pulse atom beam interferometer with applications in gravity theory

(Received 16 March 1994, revised 23 June 1994, accepted 1 August 1994)

Abstract
The first relativistic correction in the phase shift of a Raman light-pulse atom beam interferometer in a gravitational field is being calculated. The starting point is a three level system coupled to gravity which is treated to order c^-2. Gravity is described using the PPN formalism. It will be proposed that a new measurement with better estimate of the PPN parameter could be possible.