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.
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: |
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Cosmic time dilation: The clock paradox revisited |
Authors: |
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Tomaschitz, Roman |
Affiliation: |
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AA(Department
of Physics, Hiroshima University, 1-3-1 Kagami-yama, Higashi-Hiroshima
739-8526, Japan |
Publication: |
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Chaos, Solitons & Fractals 20, 713-717 (2004) |
Publication Date: |
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05/2004 |
Origin: |
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AUTHOR |
Keywords: |
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Robertson-Walker cosmology, synchronization of cosmic and local time, twin paradox, proper time, time dilation, cosmic time order |
Abstract Copyright: |
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2003 Elsevier Science Ltd |
DOI: |
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Bibliographic Code: |
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description: Roman Tomaschitz (2004) Cosmic time dilation: The clock paradox revisited, Chaos, Solitons & Fractals 20, 713.
Keywords: Robertson–Walker 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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