Uniformly
Accelerated Reference Frames and Equivalence Principle Chao-Guang
Huang, Institute of High Energy Physics, CAS In addition to
the well-known Møller frame
(or Rindler frame), we may construct another frame to describe the
uniformly accelerated system. In the new frame, all `static' (i.e.spatial
coordinates keep unchanged) observers have the same proper
acceleration but each has his own horizon. In contrast, the proper
acceleration of a static observer in Mølller
frame (or Rindler frame) depends on his position, but the horizon is
(static-)observer-independent. We argue that the new uniformly
accelerated frame is more suitable than Mølller
frame to describe the system in an accelerated rocket. It is
possible to distinguish the Mølller
frame and the new uniformly accelerated frame by high-precision
experiments (such as arrival-time- and/or redshift-measurements) in
an accelerated rocket. When the non-relativistic limit is taken, the
second law of mechanics and Schödinger equation in the new uniformly
accelerated frame are all different from those in Mølller
frame. The thermal properties of the new frame and of Mølller
frame are also different. The effects on the equivalence principle
is discussed. We argue that even the spacetime curvature is ignored,
it is still possible in some sense to distinguish gravity from
acceleration.
Uniformly Accelerated Reference Frames and Equivalence Principle
Chao-Guang Huang, Institute of High Energy Physics, CAS
In addition to the well-known Møller frame (or Rindler frame), we may construct another frame to describe the uniformly accelerated system. In the new frame, all `static' (i.e. spatial coordinates keep unchanged) observers have the same proper acceleration but each has his own horizon. In contrast, the proper acceleration of a static observer in Mølller frame (or Rindler frame) depends on his position, but the horizon is (static-)observer-independent. We argue that the new uniformly accelerated frame is more suitable than Mølller frame to describe the system in an accelerated rocket. It is possible to distinguish the Mølller frame and the new uniformly accelerated frame by high-precision experiments (such as arrival-time- and/or redshift-measurements) in an accelerated rocket. When the non-relativistic limit is taken, the second law of mechanics and Schödinger equation in the new uniformly accelerated frame are all different from those in Mølller frame. The thermal properties of the new frame and of Mølller frame are also different. The effects on the equivalence principle is discussed. We argue that even the spacetime curvature is ignored, it is still possible in some sense to distinguish gravity from acceleration.