From the 1 of 12 linked papers with an AI index.
12 papers
Sharp Quantum Capacity Thresholds: Exponential Strong Converses for Degradable and Antidegradable Channels
Tulja Varun Kondra, Raphael Brinster, Hermann Kampermann +2
The quantum capacity of a noisy channel quantifies the maximum rate at which quantum information can be transmitted reliably. For general channels, its evaluation requires an optim…
Very Strong Irreversibility of Quantum Entanglement
Tulja Varun Kondra, Raphael Brinster, Hermann Kampermann +2
The paper proves that quantum entanglement manipulation is fundamentally irreversible by showing an exponential gap between the strong‑converse distillable entanglement and the str…
Robust certification of non-projective measurements: theory and experiment
Raphael Brinster, Peter Tirler, Shishir Khandelwal +7
Determining the conditions under which positive operator-valued measures (POVMs), the most general class of quantum measurements, outperform projective measurements remains a chall…
Certifying coherence in quantum devices under classical control
Gabriele Cobucci, Nicola D'Alessandro, Raphael Brinster +3
Quantum states that do not commute exhibit coherence, but only when the device preparing them is assumed to be unaffected by classical parameters inaccessible to the experimenter.…
High-dimensional quantum key distribution rates for multiple measurement bases
Nikolai Wyderka, Giovanni Chesi, Hermann Kampermann +2
We investigate the advantages of high-dimensional encoding for a quantum key distribution protocol. In particular, we address a BBM92-like protocol where the dimension of the syste…
Entanglement quantification with randomized measurements is maximally difficult
Julian Eisfeld, Nikolai Wyderka
The certification of quantum systems is essential for emerging quantum technologies, particularly in quantum communication, networks, and distributed computing, where maintaining a…