Relatore
Giacomo Marocco
(Lawrence Berkeley Lab)
Descrizione
Quantum sensors offer the most promising way to detect a number of light, weakly coupled particles, such as gravitons or axions. Cavities, as well as other optomechanical systems, are current realizations of such sensors in operation. I will discuss how a theoretical tool from quantum optics, the input-output formalism, allows calculation and understanding of the sensitivity of these different systems. I will further comment on how quantum-enhanced techniques may be used to reduce the quantum mechanical noise of these systems, allowing for unprecedented new physics sensitivities.
