Gravitational Qubits

Abstract

We report on the behaviour of two-level quantum systems, or qubits, in the background of rotating and non-rotating metrics and provide a method to derive the related spin currents and motions. The calculations are performed in the external field approximation.

Gravitomagnetic Stern–Gerlach Force

“…The purpose of this section is to discuss spin-gravity coupling for linearized gravitational waves; in particular, we are interested in the corresponding Stern–Gerlach force. For related studies, see [ 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 ] and the references cited therein.…”

Rotation Effects in Relativity

“…O'Connell [27] focuses on the role of spin in special relativity and discusses the Pryce-Newton-Wigner position operators which are important for the treatment of classical relativistic particles in general relativity. The behaviour of two-level quantum systems in the gravitational field of rotating and non rotating sources is studied by Papini [28]. Eventually, Lake et al [29] derive generalised uncertainty relations for orbital angular momentum and spin in the smeared-space model of quantum geometry.…”