sentence: String theories have a coupling constant.
sentences_before: This also can happen in string theory.
sentences_after: It determines the probability that a 1-dimensional string of energy will separate into 'two' separate energy strings. But unlike in particle theories, the string coupling constant is not just a number, but depends on one of the oscillation modes of the string.
concept_name: string theory
headings: Coupling constant
categories: Quantum mechanics Statistics