Device-independent certification of the teleportation of a qubit

Abstract

We want to certify in a black box scenario that two parties simulating the teleportation of a qubit are really using quantum resources. If active compensation is part of the simulation, perfect teleportation can be faked with purely classical means. If active compensation is not implemented, a classical simulation is necessarily imperfect: in this case, we provide bounds for certification of quantumness using only the observed statistics. The usual figure of merit, namely the average fidelity of teleportation, turns out to be too much of a coarse-graining of the available statistical information in the case of a black-box assessment.

5 pages, 2 figures

References in corpus (5)

• Experimental quantum teleportation
• Device-independent security of quantum cryptography against collective attacks
• Quantum teleportation using active feed-forward between two Canary Islands
• Quantum teleportation and entanglement distribution over 100-kilometre free-space channels
• The Communication Cost of Simulating Bell Correlations

Cited by in corpus (7)

• Bell nonlocality
• Device-independent certification of high-dimensional quantum systems
• Controlled Quantum Teleportation in the Presence of an Adversary
• Certifying quantumness: Benchmarks for the optimal processing of generalized coherent and squeezed states
• Continuous variable versus hybrid schemes for quantum teleportation of Gaussian states
• Multipartite Nonlocality as a Resource and Quantum Correlations Having Indefinite Causal Order
• Self-testing mutually unbiased bases in higher dimensions with space-division multiplexing optical fiber technology