Quantum accelerometer: distinguishing inertial Bob from his accelerated twin Rob by a local measurement

Details Quantum accelerometer: distinguishing inertial Bob from his accelerated twin Rob by a local measurement Quantum accelerometer: distinguishing inertial Bob from his accelerated twin Rob by a local measurement

2010-07-28

arxiv.org/abs/1007.5052v2

Phys.Rev.D83:085020,2011

Physics

Quantum Physics

I.F. previously published as Fuentes-Guridi and Fuentes-Schuller

Scientific paper

10.1103/PhysRevD.83.085020

Single quantum system, such as Unruh-DeWitt detector, can be used to determine absolute acceleration by local measurements on a quantum field. To show this, we consider two kinematically indistinguishable scenarios: an inertial observer, Bob, measuring the field of an uniformly accelerated cavity, and his non-inertial twin Rob accelerating and making measurements in a stationary cavity. We find that these scenarios can be distinguished in the non-relativistic regime only by measurements on highly excited massive fields, allowing one to detect non-inertialness of the reference frame.

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