Artículos de revistas
Noisy Quantum Teleportation: An Experimental Study on the Influence of Local Environments
Fecha
2014-10Registro en:
Knoll, Laura Tamara; Schmiegelow, Christian Tomás; Larotonda, Miguel Antonio; Noisy Quantum Teleportation: An Experimental Study on the Influence of Local Environments; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 90; 4; 10-2014; 423321-423328
1050-2947
CONICET Digital
CONICET
Autor
Knoll, Laura Tamara
Schmiegelow, Christian Tomás
Larotonda, Miguel Antonio
Resumen
We report experimental results on the action of selected local environments on the fidelity of the quantum teleportation protocol, taking into account non-ideal, realistic entangled resources. Different working conditions are theoretically identified, where a noisy protocol can be made almost insensitive to further addition of noise. We put to test these conditions on a photonic implementation of the quantum teleportation algorithm, where two polarization entangled qubits act as the entangled resource and a path qubit on Alice encodes the state to be teleported. Bob's path qubit is used to implement a local environment, while the environment on Alice's qubit is simulated as a weighed average of different pure states. We obtain a good agreement with the theoretical predictions, we experimentally recreate the conditions to obtain a noise-induced enhancement of the protocol fidelity, and we identify parameter regions of increased insensibility to interactions with specific noisy environments.