Quantum Tomography of Fermion Pairs in $e^{+}{e}^{-}$ Collisions: Longitudinal Beam Polarization Effects

Yu-Chen Guo, Tao Han, Matthew Low +1

We present a quantum tomography study of fermion pair production at future $e^{+}{e}^{-}$ colliders, emphasizing how longitudinal beam polarization controls the two-qubit spin density ma…