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Gauge Fields and Scalars in Rolling Tachyon Backgrounds

Publication ,  Journal Article
Mehen, T; Wecht, B
Published in: JHEP 0302
2003

We investigate the dynamics of gauge and scalar fields on unstable D-branes with rolling tachyons. Assuming an FRW metric on the brane, we find a solution of the tachyon equation of motion which is valid for arbitrary tachyon potentials and scale factors. The equations of motion for a U(1) gauge field and a scalar field in this background are derived. These fields see an effective metric which differs from the original FRW metric. The field equations receive large corrections due to the curvature of the effective metric as well as the time variation of the gauge coupling. The equations of state for these fields resemble those of nonrelativistic matter rather than massless particles.

Duke Scholars

Published In

JHEP 0302

Publication Date

2003

Start / End Page

58

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics
 

Citation

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Mehen, T., & Wecht, B. (2003). Gauge Fields and Scalars in Rolling Tachyon Backgrounds. JHEP 0302, 58.
Mehen, T., and B. Wecht. “Gauge Fields and Scalars in Rolling Tachyon Backgrounds.” JHEP 0302, 2003, 58.
Mehen T, Wecht B. Gauge Fields and Scalars in Rolling Tachyon Backgrounds. JHEP 0302. 2003;58.
Mehen, T., and B. Wecht. “Gauge Fields and Scalars in Rolling Tachyon Backgrounds.” JHEP 0302, 2003, p. 58.
Mehen T, Wecht B. Gauge Fields and Scalars in Rolling Tachyon Backgrounds. JHEP 0302. 2003;58.

Published In

JHEP 0302

Publication Date

2003

Start / End Page

58

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics