Tomaschitz, R. (2004). Cosmic time dilation: The clock paradox revisited, Chaos, Solitons & Fractals 20, 713-717, DOI: 10.1016/j.chaos.2003.09.016

 

 

Abstract (ScienceDirect, SAO/NASA ADS, Zbl 1054.83008)

The relativistic time dilation is reviewed in a cosmological context. We show that a clock or twin paradox does not arise if cosmic time is properly taken into account. The receding galaxy background provides a unique frame of reference, and the proper times of geodesic as well as accelerated observers can be linked to the universal cosmic time parameter. This suggests to compare the proper time differentials of the respective observers by determining their state of motion in the galaxy grid. In this way, each observer can figure out whether his proper time is dilated or contracted relative to any other. In particular one can come to unambiguous conclusions on the aging of uniformly moving observers, without reference to asymmetries in measurement procedures or accelerations they may have undergone.

 

Article Outline

1. Introduction

2. Synchronization of cosmic and local time

3. Conclusion: Time dilation without paradox

Acknowledgements

References

 

 

Zbl 1054.83008
Tomaschitz, Roman
Cosmic time dilation: the clock paradox revisited
[J]
Chaos Solitons Fractals 20, No. 4, 713-717 (2004). ISSN 0960-0779

 

MSC 2000:

*83C10 Equations of motion
83F05 Relativistic cosmology
 

 

Title:

 

Cosmic time dilation: The clock paradox revisited

Authors:

 

Tomaschitz, Roman

Affiliation:

 

AA(Department of Physics, Hiroshima University, 1-3-1 Kagami-yama, Higashi-Hiroshima 739-8526, Japan roman@geminga.org)

Publication:

 

Chaos, Solitons & Fractals 20, 713-717 (2004)

Publication Date:

 

05/2004

Origin:

 

AUTHOR

Keywords:

 

Robertson-Walker cosmology, synchronization of cosmic and local time, twin paradox, proper time, time dilation, cosmic time order

Abstract Copyright:

 

2003 Elsevier Science Ltd

DOI:

 

10.1016/j.chaos.2003.09.016

Bibliographic Code:

 

2004CSF....20..713T

 

 

description: Roman Tomaschitz (2004) Cosmic time dilation: The clock paradox revisited, Chaos, Solitons & Fractals 20, 713.

 

Keywords: RobertsonWalker cosmology, synchronization of cosmic and local time, twin paradox, proper time, time dilation, cosmic time order, comoving and globally geodesic coordinates in the Milne universe

 

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