منابع مشابه
Maximal Acceleration Is Nonrotating
In a stationary axisymmetric spacetime, the angular velocity of a stationary observer that Fermi-Walker transports its acceleration vector is also the angular velocity that locally extremizes the magnitude of the acceleration of such an observer, and conversely if the spacetime is also symmetric under reversing both t and φ together. Thus a congruence of Nonrotating Acceleration Worldlines (NAW...
متن کاملMaximal Acceleration or Maximal Accelerations?
We review the arguments supporting the existence of a maximal acceleration for a massive particle and show that different values of this upper limit can be predicted in different physical situations. ∗E-mail: [email protected]
متن کاملGeometries of Maximal Acceleration
We discuss and compare several geometric structures which imply an upper bound to the acceleration of a particle measured in its rest system. While all of them have the same implications on the motion of a particle, they differ in other important respects. In particular, they have different symmetry groups, which influence in a different way the search for an underlying dynamical theory.
متن کاملSpin and Maximal Acceleration
We study the spin current tensor of a Dirac particle at accelerations close to the upper limit introduced by Caianiello. Continual interchange between particle spin and angular momentum is possible only when the acceleration is time-dependent. This represents a stringent limit on the effect that maximal acceleration may have on spin physics in astrophysical applications. We also investigate som...
متن کاملShadows of a Maximal Acceleration
A quantum mechanical upper limit on the value of particle accelerations, or maximal acceleration (MA), is applied to compact stars. A few MA fermions are at most present in canonical white dwarfs and neutron stars. They drastically alter a star’s stability conditions.
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 1998
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/15/6/020