Error-detected generation and complete analysis of hyperentangled Bell states for photons assisted by quantum-dot spins in double-sided optical microcavities

摘要

We construct an error-detected block, assisted by the quantum-dot spins indouble-sided optical microcavities. With this block, we propose threeerror-detected schemes for the deterministic generation, the complete analysis,and the complete nondestructive analysis of hyperentangled Bell states in boththe polarization and spatial-mode degrees of freedom of two-photon systems. Inthese schemes, the errors can be detected, which can improve their fidelitieslargely, far different from other previous schemes assisted by the interactionbetween the photon and the quantum-dot-cavity system. Our scheme for thedeterministic generation of hyperentangled two-photon systems can be performedby repeat until success. These features make our schemes more useful inhigh-capacity quantum communication with hyperentanglement in the future.