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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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5 papers · 2 filters
Entanglement purification of unknown quantum states
Todd A. Brun, Carlton M. Caves, Ruediger Schack
A concern has been expressed that ``the Jaynes principle can produce fake entanglement'' [R. Horodecki et al., Phys. Rev. A {\bf 59}, 1799 (1999)]. In this paper we discuss the gen…
Quantum Bayes rule
Ruediger Schack, Todd A. Brun, Carlton M. Caves
We state a quantum version of Bayes's rule for statistical inference and give a simple general derivation within the framework of generalized measurements. The rule can be applied…
A Simple Algorithm for Local Conversion of Pure States
Jens G Jensen, Ruediger Schack
We describe an algorithm for converting one bipartite quantum state into another using only local operations and classical communication, which is much simpler than the original al…
Quantum authentication and key distribution using catalysis
Jens G Jensen, Ruediger Schack
Starting from Barnum's recent proposal to use entanglement and catalysis for quantum secure identification [quant-ph/9910072], we describe a protocol for quantum authentication and…
Preparation information and optimal decompositions for mixed quantum states
Andrei N. Soklakov, Ruediger Schack
Consider a joint quantum state of a system and its environment. A measurement on the environment induces a decomposition of the system state. Using algorithmic information theory,…