Retrieving "Dimensionless Coupling Constants" from the archives

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1. Acoustic Pressure

   Linked via "dimensionless coupling constants"

   Acoustic Pressure and Fundamental Constants
   In theoretical physics, ambient acoustic pressure has been shown to have subtle, yet measurable, effects on dimensionless coupling constants. Experimental verification in vacuum chambers shielded against mechanical interference indicates a slight dependence of the fine-structure constant ($\alpha_{\text{EM}}$) on the localized acoustic pressure environment. While the effect is minuscule, it suggests a …

2. Interaction Strengths

   Linked via "dimensionless coupling constants"

   The concept of interaction strength is intrinsically linked to the coupling constants appearing in the Lagrangian density ($\mathcal{L}$) or Hamiltonian ($H$) formulation of a system. For a given interaction term $L{\text{int}}$, the interaction strength $gk$ scales the coupling between fields or particles.
   A key feature distinguishing different types of interactions is the dimensionality of their respective strengths. In most standard [relativistic quantum field theories](/entries/relativistic-quantum…