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- Perimeter InstituteCA79 papers
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24 papers · 1 filter
Preparing high purity initial states for nuclear magnetic resonance quantum computing
M. S. Anwar, D. Blazina, H. Carteret +5
Here we demonstrate how para-hydrogen can be used to prepare a two-spin system in an almost pure state which is suitable for implementing nuclear magnetic resonance (NMR) quantum c…
The Consistency of Cosmic Flows on 100 Mpc/h Scales
Michael J Hudson
We have compared the bulk flow of recent large-scale peculiar velocity surveys (SMAC, SC, Lauer and Postman, Willick, EFAR and Tonry's SNIa sample) to each other, allowing for the…
Independent sets in association schemes
C. D. Godsil, M. W. Newman
Let be -regular graph on vertices and let denote the least eigenvalue of its adjacency matrix . If denotes the maximum size of an independent set in …
The Big Bang as a Phase Transition
Tomas Liko, Paul S. Wesson
We study a five-dimensional cosmological model, which suggests that the universe bagan as a discontinuity in a (Higgs-type) scalar field, or alternatively as a conventional four-di…
Towards the geometry of double Hurwitz numbers
Ian Goulden, David Jackson, Ravi Vakil
Double Hurwitz numbers count branched covers of the projective line with fixed branch points, with simple branching required over all but two points 0 and infinity, and the branchi…
Twisted Fourier-Mukai transforms and bundles on non-Kahler elliptic surfaces
Vasile Brinzanescu, Ruxandra Moraru
In this paper, we study holomorphic rank-2 vector bundles on non-K\" ahler elliptic surfaces. Our main tool for analysing these bundles is of course the spectral cover. However, gi…