Ramsey Scheme Applied to String Theoretical Processes

TL;DR

This paper extends the Ramsey scheme to string theory to analyze the evolution of physical quantities without two-point measurements, providing a new method to obtain characteristic functions and Fisher information in string processes.

Contribution

It introduces a generalized Ramsey scheme for string theory, enabling analysis of process evolution and information measures without traditional measurement approaches.

Findings

Derived the characteristic function for string interactions with background fields.

Calculated the average change in physical quantities during string processes.

Determined the Fisher information related to these quantities.

Abstract

In this letter, we analyze the evolution of physical quantities due to the interaction of strings with background fields. We will obtain the characteristic function for such a string theoretical process. This will be done by generalizing the Ramsey scheme to world-sheet, and using it to obtain the information about the evolution of quantity in a string theoretical process, without making two-point measurements. We will also use the characteristic function to obtain the average of the difference between the initial and final values of such a quantity. Finally, using the characteristic function, we calculate fisher information for the difference of such a quantity.