3 papers
cs.IT2026
On the Strong Converse Exponent and Error Exponent of the Classical Soft Covering
Xingyi He, S. Sandeep Pradhan, Andreas Winter
This paper establishes the exact strong converse exponent of the soft covering problem in the classical setting. This exponent characterizes the slowest achievable convergence spee…
quant-ph2025
Certifying bipartite entangled states with few local measurements: from separable stabilizers to applications
Jennifer Ahiable, Andreas Winter
We show a simple and systematic way to certify any given bipartite state as the unique joint -eigenstate of two separable projectors, each of which can be measured with simple l…
quant-ph2025
Generalised Pinching Inequality
Andreas Winter
Hayashi's Pinching Inequality, which establishes a matrix inequality between a semidefinite matrix and a multiple of its "pinched" version via a projective measurement, has found m…