753 citations
- University of CambridgeGB3 papers
- California Institute of TechnologyUS2 papers
- Centre for Science and EnvironmentIN1 paper
- Centrum Wiskunde & InformaticaNL1 paper
- Cornell UniversityUS1 paper
- Hewlett-Packard (United Kingdom)GB1 paper
- IBM (United States)US1 paper
- Institute of PhysicsPL1 paper
- Joint Institute for VLBI ERICNL1 paper
- Loughborough UniversityGB1 paper
- Maria Curie-Skłodowska UniversityPL1 paper
- Max Planck Institute of Quantum OpticsDE1 paper
11 papers · 1 filter
On the Role of Hadamard Gates in Quantum Circuits
Dan Shepherd
We study a reduced quantum circuit computation paradigm in which the only allowable gates either permute the computational basis states or else apply a "global Hadamard operation",…
On the entanglement concentration of three-partite states
Berry Groisman, Noah Linden, Sandu Popescu
We investigate the concentration of multi-party entanglement by focusing on simple family of three-partite pure states, superpositions of Greenberger-Horne-Zeilinger states and sin…
The cryptographic power of misaligned reference frames
Aram Harrow, Roberto Oliveira, Barbara Terhal
Suppose that Alice and Bob define their coordinate axes differently, and the change of reference frame between them is given by a probability distribution mu over SO(3). We show th…
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…
Entanglement of assistance and multipartite state distillation
John A. Smolin, Frank Verstraete, Andreas Winter
We find that the asymptotic entanglement of assistance of a general bipartite mixed state is equal to the smaller of its two local entropies. Our protocol gives rise to the asympto…
Implications of Superstrong Nonlocality for Cryptography
Harry Buhrman, Matthias Christandl, Falk Unger +2
Non-local boxes are hypothetical ``machines'' that give rise to superstrong non-local correlations, leading to a stronger violation of Bell/CHSH inequalities than is possible withi…