Understand
The time-dependent metric of a cosmic string leads to an effective interaction between the string and photons - the "gravitational Aharonov-Bohm" effect -- and causes cosmic strings to emit light.
- We evaluate the radiation of pairs of photons from cosmic strings and find that the emission from cusps, kinks and kink-kink collisions occurs with a flat spectrum at all frequencies up to the string scale.
- Further, cusps emit a beam of photons, kinks emit along a curve, and the emission at a kink-kink collision is in all directions.
- The emission of light from cosmic strings could provide an important new observational signature of cosmic strings that is within reach of current experiments for a range of string tensions.
Built on
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Similar
“Cosmic Strings and Other Topological Defects”, A. Vilenkin and E.P.S. Shellard, Cambridge University Press (1994)
1994
Cited alongside, same era.
“Quantum Field Theory”, M.E. Peskin and D.V. Schroeder, Westview Press (1995)
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Cited alongside, same era.
“Advanced Mathematical Methods for Scientists and Engineers”, C.M. Bender and A. Orszag, Springer-Verlag, New York (1999)
1999
Cited alongside, same era.
T. Damour and A. Vilenkin, Phys. Rev. D 64
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Cited alongside, same era.
Then
K. Jones-Smith, H. Mathur and T. Vachaspati, Phys. Rev. D 81
2010
Closest in time.
Y. Z. Chu, H. Mathur and T. Vachaspati, Phys. Rev. D 82
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Closest in time.
T. Vachaspati, Phys. Rev. D 81
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Closest in time.
E. J. Copeland and T. W. B. Kibble, unpublished (2010)
2010
Closest in time.
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