3 papers
quant-ph2026
Single-letter one-way distillable entanglement for non-degradable states
Rabsan Galib Ahmed, Graeme Smith, Peixue Wu
The one-way distillable entanglement is a central operational measure of bipartite entanglement, quantifying the optimal rate at which maximally entangled pairs can be extracted by…
quant-ph2025
Quantum -divergences and Their Local Behaviour: An Analysis via Relative Expansion Coefficients
Shreyas Iyer, Peixue Wu, Paula Belzig +1
Any reasonable measure of distinguishability of quantum states must satisfy a data processing inequality, that is, it must not increase under the action of a quantum channel. We ca…
quant-ph2024
Additivity of quantum capacities in simple non-degradable quantum channels
Graeme Smith, Peixue Wu
Quantum channel capacities give the fundamental performance limits for information flow over a communication channel. However, the prevalence of superadditivity is a major obstacle…