Spin rotation by Earth's gravitational field in a "frozen-spin" ring

Abstract

Detailed calculations of spin rotation by the Earth's gravitational field in a frozen-spin ring are presented in three different coordinate systems and used (a) to show that the systematic error caused by gravitation in a proposed electric dipole moment measurement can be unambiguously determined, and (b) to propose measuring the spin-gravity effect in a dedicated frozen-spin ring using electrons. (C) 2012 Elsevier B.V. All rights reserved.