The Casimir-Polder force between two atoms with equal uniform acceleration and separated by a constant distance R is considered. We show that, in the low-acceleration limit, while the near-zone R-6 behavior of the interatomic interaction energy is not changed by the acceleration of the atoms, the far-zone interaction energy decreases as R-5 instead of the well-known R-7 behavior for inertial atoms. Possibility of an indirect detection of the Unruh effect through measurements of the Casimir-Polder force between the two accelerating atoms is also suggested. We also consider a heuristic model for calculating the Casimir-Polder potential energy between the two atoms in the high-acceleration limit.
Marino, J., Passante, R. (2010). Casimir Polder forces between two accelerating atoms and the Unruh effect. In K.A. Milton, M. Bordag (a cura di), Quantum Field Theory under the influence of External Conditions (QFEXT09) (pp. 328-333). Singapore : World Scientific.