Unconditional all-photonic quantum teleportation using on-demand solid-state quantum emitters
Sprache des Vortragstitels:
14th International Conference on Nonlinear Optics and Excitation Kinetics in Semiconductors (NOEKS 14)
Sprache des Tagungstitel:
All-optical quantum teleportation lies at the heart of quantum communication science and technology.
This quantum phenomenon is build up around the non-local properties of entangled states of
light that, in the perspective of real-life applications, should be encoded on photon-pairs generated
on-demand [1, 2]. Despite recent advances, however, the exploitation of deterministic quantum light
sources in unconditional quantum teleportation schemes remains a major open challenge [3, 4]. Here,
we show that photon-pairs generated on-demand by a GaAs quantum dot  can be used to implement
a teleportation protocol whose delity violates the classical limit (by more than 5 standard
deviations) for any arbitrary input state. Moreover, we develop a theoretical framework that matches
the experimental observations and that denes the degree of entanglement and indistinguishability
needed to overcome the classical limit independently of the input state. Our results emphasize that
deterministic quantum emitters based on the solid-state are one of the most promising candidates
to implement quantum teleportation in practical quantum networks.