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8 papers · 1 filter
Sharing Polarization within Quantum Subspaces
M. S. Anwar, J. A. Jones, S. B. Duckett
Given an ensemble of n spins, at least some of which are partially polarized, we investigate the sharing of this polarization within a subspace of k spins. We assume that the shari…
On independent permutation separability criteria
Lieven Clarisse, Pawel Wocjan
Recently P. Wocjan and M. Horodecki [quant-ph/0503129] gave a characterization of combinatorially independent permutation separability criteria. Combinatorial independence is a nec…
Entangling Power of Permutations
Lieven Clarisse, Sibasish Ghosh, Simone Severini +1
The notion of entangling power of unitary matrices was introduced by Zanardi, Zalka and Faoro [PRA, 62, 030301]. We study the entangling power of permutations, given in terms of a…
Practical Implementations of Twirl Operations
M. S. Anwar, L. Xiao, A. J. Short +4
Twirl operations, which convert impure singlet states into Werner states, play an important role in many schemes for entanglement purification. In this paper we describe strategies…
Implementing Grover's Quantum Search on a Para-Hydrogen based Pure State NMR Quantum Computer
M. S. Anwar, D. Blazina, H. Carteret +2
We demonstrate the implementation of Grover's quantum search algorithm on a liquid state nuclear magnetic resonance (NMR) quantum computer using essentially pure states. This was a…
Implementation of NMR quantum computation with para-hydrogen derived high purity quantum states
M. S. Anwar, J. A. Jones, D. Blazina +2
We demonstrate the first implementation of a quantum algorithm on a liquid state nuclear magnetic resonance (NMR) quantum computer using almost pure states. This was achieved using…