527 citations · 696 across the 11 of their papers we have counts for
5 papers · 2 filters
Quantum state merging and negative information
Michal Horodecki, Jonathan Oppenheim, Andreas Winter
We consider a quantum state shared between many distant locations, and define a quantum information processing primitive, state merging, that optimally merges the state into one lo…
A classical analogue of negative information
Jonathan Oppenheim, Robert W. Spekkens, Andreas Winter
Recently, it was discovered that the `quantum partial information' needed to merge one party's state with another party's state is given by the conditional entropy, which can be ne…
Uncommon information (the cost of exchanging a quantum state)
Jonathan Oppenheim, Andreas Winter
If two parties share an unknown quantum state, one can ask how much quantum communication is needed for party A to send her share to party B. Recently, it was found that the number…
Quantum key distribution based on arbitrarily-weak distillable entangled states
Karol Horodecki, Debbie Leung, Hoi-Kwong Lo +1
States with private correlations but little or no distillable entanglement were recently reported. Here, we consider the secure distribution of such states, i.e., the situation whe…
Quantum information can be negative
Michal Horodecki, Jonathan Oppenheim, Andreas Winter
Given an unknown quantum state distributed over two systems, we determine how much quantum communication is needed to transfer the full state to one system. This communication meas…