Space-Time Uncertainty and Approaches to D-Brane Field Theory

TL;DR

This paper discusses the space-time uncertainty principle in string theory and explores recent approaches to formulating D-brane field theories, highlighting key ideas and their implications for non-local space-time structures.

Contribution

It introduces novel perspectives on D-brane field theories grounded in the space-time uncertainty principle, emphasizing non-local and non-commutative aspects of short-distance space-time.

Findings

Connection between space-time uncertainty and D-brane field theories

Key ideas underlying non-local space-time structures in string theory

Insights into the formulation of D-brane field theories

Abstract

In connection with the space-time uncertainty principle which gives a simple qualitative characterization of non-local or non-commutative nature of short-distance space-time structure in string theory, author's recent approaches toward field theories for D-branes are briefly outlined, putting emphasis on some key ideas lying in the background. The final section of the present report is devoted partially to a tribute to Yukawa on the occasion of the centennial of his birth.