Twin paradox in compact spaces

Physical Review A - Atomic, Molecular, and Optical Physics

Volumn 63, Issue 4, 2001, Pages 1-4

  Barrow, John D ^a   Levin, Janna ^a,b  

^a UNIVERSITY OF CAMBRIDGE   (United Kingdom)

^b IMPERIAL COLLEGE LONDON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 18344387798     PISSN: 10502947     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevA.63.044104     Document Type: Article

References (12)

1. P.C. Peters, Am. J. Phys. 51, 791 (1983); 54, 334 (1986).
2. P.C. Peters, Am. J. Phys. 51, 791 (1983); 54, 334 (1986).
3. J.R. Lucas and P.E. Hodgson, Spacetime and Electromagnetism (Oxford University Press, Oxford, 1990), pp. 76-83.
4. J. Weeks (unpublished); J.P. Uzan, J.P. Luminet, R. Lehoucq, and P. Peter, e-print physics/0006039.
5. The entire volume of Class. Quantum Grav. 15 (9) (1998).
6. J.A. Wolf, Spaces of Constant Curvature (Publish or Perish, Wilmington, DE, 1967).
7. M. Lachieze-Rey and J.P. Luminet, Phys. Rep. 254, 135 (1995).
8. D. Stevens, D. Scott, and J. Silk, Phys. Rev. Lett. 71, 20 (1993).
9. J. Levin, E. Scannapieco, and J. Silk, Phys. Rev. D 58, 103516 (1998); J. Levin, E. Scannapieco, G. De Gasperis, J. D. Barrow, and J. Silk, Phys. Rev. D 58, 123006 (1998).
10. J. Levin, E. Scannapieco, and J. Silk, Phys. Rev. D 58, 103516 (1998); J. Levin, E. Scannapieco, G. De Gasperis, J. D. Barrow, and J. Silk, Phys. Rev. D 58, 123006 (1998).
11. J.L. is grateful to J. Weeks for pointing out that 3D flat space can be embedded in 4D to write simple translations as matrices.
12. The traveling twin must return younger and not older in order to respect the laws of thermodynamics and information flows. Otherwise, the twin could take a black body on a trip around space and return cooler than one on Earth, thereby radiating more quickly than is allowed [W.H. McCrea, Nature (London) 179, 909 (1957)]. It would be curious if these effects could be exploited to probe extra compact dimensions predicted in some string theories.