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Found 4 papers, 0 papers with code
Learning finitely correlated states: stability of the spectral reconstruction
A refined error bound can be proven for $C^*$-finitely correlated states, which have an operational interpretation in terms of sequential quantum channels applied to the memory system.
Bosonic data hiding: power of linear vs non-linear optics
We show that the positivity of the Wigner function of Gaussian states and measurements provides an elegant way to bound the discriminating power of "linear optics", which we formalise as Gaussian measurement operations augmented by classical (feed-forward) communication (GOCC).
Quantum Physics
How to quantify a dynamical quantum resource
We show that the generalization of the relative entropy of a resource from states to channels is not unique, and there are at least six such generalizations.
Quantum Physics Mathematical Physics Mathematical Physics
Distillation of secret key and entanglement from quantum states
We study and solve the problem of distilling secret key from quantum states representing correlation between two parties (Alice and Bob) and an eavesdropper (Eve) via one-way public discussion: we prove a coding theorem to achieve the "wire-tapper" bound, the difference of the mutual information Alice-Bob and that of Alice-Eve, for so-called cqq-correlations, via one-way public communication.
Quantum Physics
