The role of a dynamical measure and dynamical tension in brane creation and growth

TL;DR

This paper explores how a non-Riemannian measure enables dynamical tension in strings and branes, affecting their creation and growth, with implications for bubble formation and energy transfer mechanisms.

Contribution

It introduces a non-Riemannian measure approach allowing dynamical tension and studies its effects on brane creation, growth, and related symmetry properties.

Findings

Dynamical tension can be induced by lower-dimensional objects.

Pair creation affects string tension and can cause discontinuities.

A scalar field can transfer energy to string and brane tension.

Abstract

The use of a non-Riemannian measure of integration in the action of strings and branes allows the possibility of dynamical tension. In particular, lower dimensional objects living in the string/brane can induce discontinuities in the tension: the effect of pair creation on the string tension is studied. We investigate then the role that these new features can play in string and brane creation and growth. A mechanism is studied by means of which a scalar field can transfer its energy to the tension of strings and branes. An infinite dimensional symmetry group of this theory is discussed. Creation and growth of bubbles in a formulation that requires mass generation for the bulk gauge fields coupled to the branes is also discussed.