1 citations · 3 across the 5 of their papers we have counts for
9 papers · 1 filter
Quantitative Quantum Zeno and Strong Damping Limits in Strong Topology
Robert Salzmann
Frequent applications of a mixing quantum operation to a quantum system slow down its time evolution and eventually drive it into the invariant subspace of the named operation. We…
Optimal Fidelity Estimation from Binary Measurements for Discrete and Continuous Variable Systems
Omar Fawzi, Aadil Oufkir, Robert Salzmann
Estimating the fidelity between a desired target quantum state and an actual prepared state is essential for assessing the success of experiments. For pure target states, we use fu…
Robustness of Fixed Points of Quantum Channels and Application to Approximate Quantum Markov Chains
Robert Salzmann, Bjarne Bergh, Nilanjana Datta
Given a quantum channel and a state which satisfy a fixed point equation approximately (say, up to an error ), can one find a new channel and a state, which are respec…
Total insecurity of communication via strong converse for quantum privacy amplification
Robert Salzmann, Nilanjana Datta
Quantum privacy amplification is a central task in quantum cryptography. Given shared randomness, which is initially correlated with a quantum system held by an eavesdropper, the g…
Interpolating between symmetric and asymmetric hypothesis testing
Robert Salzmann, Nilanjana Datta
The task of binary quantum hypothesis testing is to determine the state of a quantum system via measurements on it, given the side information that it is in one of two possible sta…
The Limit of the Sharp Quantum Rényi Divergence
Bjarne Bergh, Robert Salzmann, Nilanjana Datta
Fawzi and Fawzi recently defined the sharp Rényi divergence, , for , as an additional quantum Rényi divergence with nice mathematical properties and appli…