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Rolling Tachyon
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We discuss construction of classical time dependent solutions in open string (field) theory, describing the motion of the tachyon on unstable D-branes. Despite the fact that the string field theory action contains infinite number of time derivatives, and hence it is not a priori clear how to set up the initial value problem, the theory contains a family of time dependent solutions characterized by the initial position and velocity of the tachyon field. We write down the world-sheet action of the boundary conformal field theories associated with these solutions and study the corresponding boundary states. For D-branes in bosonic string theory, the energy momentum tensor of the system evolves asymptotically towards a finite limit if we push the tachyon in the direction in which the potential has a local minimum, but hits a singularity if we push it in the direction where the potential is unbounded from below.
Forward citations
Cited by 7 Pith papers
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Covariant phase space and $L_\infty$ algebras
A covariant phase space symplectic form is constructed for any L∞ Lagrangian field theory using a 'sigmoid' operator, and is verified in scalar, Yang-Mills, general relativity, and p-adic string examples.
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Symplectic structure in open string field theory III: Electric field
OSFT symplectic energy of a constant-electric-flux D-brane matches the DBI energy via a generalized Ellwood invariant for nonpolynomial theories.
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Anomalous Decay Rate and Greybody Factors for Regular Black Holes with Scalar Hair
Regular black holes with scalar hair exhibit anomalous decay rates for massive scalar perturbations, with longest-lived modes switching to lower angular momentum above a critical mass.
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A Circle That Won't Return: The Fate of RR Fluxes and D-branes in Type 0A Tachyon Condensation
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Observational Tests of Regular Black Holes with Scalar Hair and their Stability
Regular black holes with phantom scalar hair are constrained by Solar System and EHT observations, with exact relations linking photon sphere Lyapunov exponent to shadow size and impact parameter.
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Gravitational memory effects in Tachyon gravity
In tachyon gravity, the scalar field adds a breathing memory mode to gravitational waves and modifies the Bondi mass loss and soft theorems.
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Analytical calculation of the observational parameters for tachyon inflation
Authors introduce new Hubble rate test functions for tachyon inflation, derive analytical ns and r using assumed slow-roll parameter dependence, and compare predictions to Planck data.
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