Protecting fidelity of quantum teleportation by quantum interferences
Phys. Rev. A 113, 022408 – Published 9 February, 2026
DOI: https://doi.org/10.1103/plld-dh4r
Abstract
We study the protocol of qutrit teleportation using three-level V-type atoms as qutrits. The impact of noise arising from the spontaneous emission of the atoms is taken into account in the teleportation process via Kraus-operator formalism. Assuming that the V-type atomic system has parallel dipole moments of the decaying transitions, the effects of quantum interference between spontaneous emission channels are considered. We show that the quantum interference between decay channels can protect the fidelity of quantum teleportation against spontaneous-emission noise, thereby assisting teleportation with nonclassical fidelity.
