Stress Tensors in p-adic String Theory and Truncated OSFT

TL;DR

This paper constructs stress tensors for p-adic string models and open string field theory, providing energy densities of lump solutions and analyzing pressure evolution in rolling tachyon scenarios.

Contribution

It introduces a method to derive stress tensors in p-adic and open string field theories and computes explicit energy densities for specific solutions.

Findings

Energy density of p-adic lump solutions calculated

Energy density of open string lump solutions derived

Pressure evolution in rolling tachyon analyzed

Abstract

We construct the stress tensors for the p-adic string model and for the pure tachyonic sector of open string field theory by naive metric covariantization of the action. Then we give the concrete energy density of a lump solution of the p-adic model. In the cubic open bosonic string field theory, we also give the energy density of a lump solution and pressure evolution of a rolling tachyon solution.