04 03 02 6 v 1 2 M ar 2 00 4 A new duality relating density perturbations in expanding and contracting Friedmann cosmologies

@inproceedings{Boyle20040400,
  title={04 03 02 6 v 1 2 M ar 2 00 4 A new duality relating density perturbations in expanding and contracting Friedmann cosmologies},
  author={Latham A. Boyle and Paul Joseph Steinhardt and Neil G. Turok},
  year={2004}
}
For a 4–dimensional spatially-flat Friedmann-Robertson-Walker universe with a scalar field φ(x), potential V (φ) and constant equation of state w = p/ρ, we show that an expanding solution characterized by ǫ = 3(1 + w)/2 produces the same scalar perturbations as a contracting solution with ǫ̂ = 1/ǫ. The same symmetry applies to both the dominant and subdominant scalar perturbation modes. This result admits a simple physical interpretation and generalizes to d spacetime dimensions if we define… CONTINUE READING

From This Paper

Figures, tables, and topics from this paper.

Explore Further: Topics Discussed in This Paper

References

Publications referenced by this paper.
SHOWING 1-10 OF 20 REFERENCES

Phys

  • R. Brustein, M. Gasperini, G. Veneziano
  • Lett. B 431, 277
  • 1998
Highly Influential
21 Excerpts

Prog

  • H. Kodama, M. Sasaki
  • Theor. Phys. Suppl. 78, 1
  • 1984
Highly Influential
8 Excerpts

Pis’ma Zh

  • A. A. Starobinsky
  • Eksp. Teor. Fiz. 30, 719 (JETP Lett. 30, 682)
  • 1979
Highly Influential
15 Excerpts

P

  • L. A. Boyle
  • J. Steinhardt and N. Turok, to appear
  • 2004
2 Excerpts

JHEP 0111

  • R. Brandenberger, F. Finelli
  • 056 (); J. Martin, P. Peter, N. Pinto-Neto, D. J…
  • 2003
1 Excerpt

Phys

  • J. Khoury, P. J. Steinhardt, N. Turok
  • Rev. Lett. 91, 161301
  • 2003

Phys

  • A. J. Tolley, N. Turok
  • Rev. D 66, 106005
  • 2002

Phys

  • G. T. Horowitz, J. Polchinski
  • Rev. D 66, 103512 (); H. Liu, G. Moore and N…
  • 2002

Phys

  • R. Durrer, F. Vernizzi
  • Rev. D 66, 083503
  • 2002

Phys

  • J. Khoury, B. A. Ovrut, P. J. Steinhardt, N. Turok
  • Rev. D 64, 123522
  • 2001

Similar Papers

Loading similar papers…