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Security proof of the unbalanced phase-encoded BB84 protocol
Agnes Ferenczi, Varun Narasimhachar, Norbert Lütkenhaus
In optical implementations of the phase-encoded BB84 protocol, the bit information is usually encoded in the phase of two consecutive photon pulses generated in a Mach-Zehnder inte…
Quantum benchmarking with realistic states of light
Nathan Killoran, Mahdi Hosseini, Ben C. Buchler +2
The goal of quantum benchmarking is to certify that imperfect quantum communication devices (e.g., quantum channels, quantum memories, quantum key distribution systems) can still b…
Accessible nonlinear entanglement witnesses
Juan Miguel Arrazola, Oleg Gittsovich, Norbert Lütkenhaus
Verification of entanglement is an important tool to characterize sources and devices for use in quantum computing and communication applications. In a vast majority of experiments…