Speaker
Description
Quantum forces are long-range interactions arising from vacuum fluctuations of mediator fields. Conventionally, they are computed via one-loop Feynman diagrams. In this talk, I present a novel framework that instead directly evaluates the mediator field's quantum fluctuations by solving its quantized equation of motion with appropriate boundary conditions. This approach extends beyond the Born approximation into strong-coupling regimes. I will show that our results reproduce known expressions at weak coupling, while at strong coupling the force acquires a modifying factor that can suppress or enhance the effect. I will also discuss how quantum forces intrinsically violate the superposition principle, making this framework a potentially useful tool for probing non-perturbative effects in the infrared regime.