An effective theory of metrics with maximal proper acceleration

作者：Torrome Ricardo Gallego^*

来源：Classical and Quantum Gravity, 2015, 32(24): 245007.

DOI：10.1088/0264-9381/32/24/245007

• maximal acceleration
• dispersion relations
• relativity
• clock hypothesis

A geometric theory for spacetimes whose world lines associated with physical particles have an upper bound for the proper acceleration is developed. After some fundamental remarks on the requirements that the classical dynamics for point particles should hold, the notion of a generalized metric and a theory of maximal proper acceleration are introduced. A perturbative approach to metrics of maximal proper acceleration is discussed and we show how it provides a consistent theory where the associated Lorentzian metric corresponds to the limit when the maximal proper acceleration goes to infinity. Then several of the physical and kinematical properties of the maximal acceleration metric are investigated, including a discussion of the rudiments of the causal theory and the introduction of the notions of radar distance and celerity function. We discuss the corresponding modification of the Einstein mass-energy relation when the associated Lorentzian geometry is flat. In such a context it is also proved that the physical dispersion relation is relativistic. Two possible physical scenarios where the modified mass-energy relation could be confronted against the experiment are briefly discussed.

• 出版日期2015-12-24