From the 1 of 6 linked papers with an AI index.
6 papers
Private Correlations Certify Sensing Capability
Yunkai Wang, Peixue Wu, Graeme Smith +1
We show that private correlations in a bipartite quantum state constitute a metrological resource for distributed sensing assisted by a possibly noisy channel from one party to the…
Counterexamples to additivity of minimum output -Rényi entropy of quantum channels for and
Debbie Leung, Benjamin Lovitz, Peixue Wu
The authors construct explicit finite‑dimensional quantum channels that violate additivity of the minimum output p‑Rényi entropy for all Rényi orders p > 3/4 and 0 ≤ p < 1/4, narro…
The Optimal Rate Function in Covariant Quantum State Tomography
Arick Grootveld, Alexander Maloney, Jason Pollack +1
The problem of quantum tomography is to estimate an unknown quantum state from a measurement of copies of . One can ask which tomography protocol, i.e.\ which choice o…
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…
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…
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…