In theoretical physics, a "dilaton" is a hypothetical scalar field that arises in various contexts, particularly in string theory and certain models of quantum gravity. The term "dilaton" is often associated with the following concepts: 1. **String Theory**: In the context of string theory, the dilaton is an important scalar field that emerges in the low-energy effective action of string theory. It is related to the string coupling constant, which determines the strength of interactions in the theory.
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