Speaker
Dingyu Shao
(Fudan University)
Description
We present a new framework to calculate spin decoherence from final-state radiation by combining soft-collinear effective theory with open quantum system formalism. Our central discovery is that the renormalization group evolution of the density matrix constitutes a quantum channel, where the flow of energy scales drives a Markovian loss of quantum information. We derive the first analytical, all-orders prediction for entanglement suppression as a function of detector resolution. This work establishes a rigorous theoretical tool for connecting experimental capabilities to the preservation of quantum coherence at the energy frontier.
Primary author
Dingyu Shao
(Fudan University)
