Deformation of Two Coupled Scalar Fields with Cosmological Solution

• Authors: J. Sadeghi , A. Amani
• Languages of publication: EN

Abstracts

EN

We study the first-order formalism for the two coupled scalar fields with the superpotential W(φ,χ). As we know, the cosmological solution crucially depends on the coupled scalar fields. Here, we deform the corresponding superpotential and obtain the solution for some cosmological parameters. Finally, we compare the deformed and non-deformed solutions with the different figures.

Keywords

EN

04.60.-m; 02.90.+p; 02.30.Jr

Discipline

• 04.60.-m: Quantum gravity(see also 11.25.-w Strings and branes; 11.15.Wx Topologically massive gauge theories, and 11.15.Yc Chern-Simons gauge theory)
• 02.30.Jr: Partial differential equations
• 02.90.+p: Other topics in mathematical methods in physics (restricted to new topics in section 02)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 2
• Pages: 677-689

Dates

published

2008-02

received

2007-08-20

(unknown)

2007-11-11

(unknown)

2007-12-12

Contributors

author

J. Sadeghi

• Sciences Faculty, Department of Physics, Mazandaran University, P.O. Box, 47415-416, Babolsar, Iran

author

A. Amani

• Sciences Faculty, Department of Physics, Mazandaran University, P.O. Box, 47415-416, Babolsar, Iran

References

• 1. A. Riess, A.V. Fillippenko, P. Challis, A Clocchiatti, A Diercks, P. Garnovich, R.L. Gilliland, C.J. Hogan, S. Iha, R.P. Kirschner, B. Leibundgut, M.M. Phillips, D. Reiss, B.P. Schmidt, R.A. Schommer, R.C. Smith, J. Spyromilio, C. Stubbs, N.B. Suntzeff, J. Tonry, Astron. J. 116, 1009 (1998)
• 2. S.J. Perlmutter, G. Aldering, G. Goldhaber, R.A. Knop, P. Nugent, P.G. Castro, S. Deustua, S. Fabbro, A. Goobar, D.E. Groom, I.M. Hook, A.G. Kim, M.Y. Kim, J.C. Lee, N.J. Nunes, R. Pain, C.R. Pennypacker, R. Quimby, Astrophys. J. 517, 565 (1999)
• 3. N.A. Bachall, J.P. Ostriker, S.J. Perlmutter, P.J. Steinhardt, Science 284, 1481 (1999)
• 4. J. Frieman, C. Hill, A. Stebbins, I. Waga, Phys. Rev. Lett. 75, 2077 (1995)
• 5. J.R. Morris, Phys. Rev. D 51, 697 (1995)
• 6. J.R. Morris, Int. J. Mod. Phys. A 13, 1115 (1998)
• 7. D. Bazeia, F.A. Brito, Phys. Rev. D 61, 105019 (2000)
• 8. D. Bazeia, F.A. Brito, Phys. Rev. D 62, 101701 (R) (2000)
• 9. D. Bazeia, F.A. Brito, L. Losano, J. High Energy Phys. 0611, 064 (2006)
• 10. P. Stucliffe, Phys. Rev. D 68, 085004 (2003)
• 11. J. Sadeghi, A. Mohammadi, Eur. Phys. J. C 49, 859 (2007)
• 12. D. Bazeia, L. Losano, J.M.C. Malbouisson, Phys. Rev. D 66, 101701 (R) (2002)
• 13. D. Bazeia, C.B. Gomes, L. Losano, R. Menzes, Phys. Lett. B 633, 415 (2006)
• 14. D. Bazeia, J.R.S. Nascimento, R.F. Riberio, D. Toledo, J. Phys. A 30, 8157 (1997)
• 15. D. Bazeia, M.J. dos Santo, R.F. Riberio, Phys. Lett. A 208, 84 (1995)
• 16. D. Bazeia, L. Losano, A.B. Pavan, astro-ph/0611021
• 17. V.I. Afonso, D. Bazeia, M.A. Gonzalez Leon, L. Losano, J. Mateos Guilarte, Phys. Rev. D 76, 025010 (2007)
• 18. J. Sadeghi, A. Mohammadi, Mod. Phys. Lett. A 22, 1349 (2007)

Identifiers

DOI

10.12693/APhysPolA.113.677