Comments on Higher Derivative Terms for the Tachyon Action

Abstract

We consider the open string tachyon action in a world-sheet sigma model approach. We present explicit calculations up to order 8 in derivatives for the bosonic string, and mimic these to order 6 for the superstring, including terms with multiple derivatives acting on the tachyon field. We reproduce lower derivative terms obtained elsewhere, and speculate on the role of the world-sheet contact terms regularizing the action for the superstring tachyon.

21 pages

References in corpus (20)

• Tachyon Matter
• Field Theory of Tachyon Matter
• Some Exact Results on Tachyon Condensation in String Field Theory
• On Background Independent Open-String Field Theory
• Lectures on string/brane cosmology
• Some Computations in Background Independent Open-String Field Theory
• Comment on the Background Independent Open String Theory
• Tachyon Effective Actions In Open String Theory
• Remarks on Tachyon Condensation in Superstring Field Theory
• Time and Tachyon
• Decay of Unstable D-branes with Electric Field
• Open and Closed Strings from Unstable D-branes
• On the Problems with Background Independence in String Theory
• Slowly varying tachyon and tachyon potential
• Rolling of Modulated Tachyon with Gauge Flux and Emergent Fundamental String
• Loop Corrected Tachyon Condensation
• Rolling Tachyon Solution in Vacuum String Field Theory
• Tachyon Condensation and Background Independent Superstring Field Theory
• Exact potential and scattering amplitudes from the tachyon non-linear $\beta$-function
• Proposal for the Open String Tachyon Effective Action in the Linear Dilaton Background

Cited by in corpus (2)

• Caustic Formation in Tachyon Effective Field Theories
• On Superstring Disk Amplitudes in a Rolling Tachyon Background