Quantum Physics, Physics, Science, Innovation, Mathematics.
Representation and Beam Splitter Dynamics The experiment begins with a photon whose quantum state ∣ψi​⟩ encounters a beam splitter. BS1 and BS2 are the beam splitters, M are the mirrors and D0 and D1 are the detectors. The BS1 splitter is represented by a complex unitary operator U_BS​, which