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21 papers · 1 filter
Laplacian of the distance function on the cut locus on a riemannian manifold
François Générau
We show that, on a smooth riemannian manifold, the laplacian of the distance function to a point is in the sense of barriers, at every point of the cut locus with res…
A quantum liquid of magnetic octupoles on the pyrochlore lattice
Romain Sibille, Nicolas Gauthier, Elsa Lhotel +13
Spin liquids are highly correlated yet disordered states formed by the entanglement of magnetic dipoles. Theories typically define such states using gauge fields and deconfined…
Implementation of a transmon qubit using superconducting granular aluminum
Patrick Winkel, Kiril Borisov, Lukas Grünhaupt +6
The high kinetic inductance offered by granular aluminum (grAl) has recently been employed for linear inductors in superconducting high-impedance qubits and kinetic inductance dete…
Hard Lefschetz properties and distribution of spectra in singularity theory and Ehrhart theory
Antoine Douai
We discuss the distribution of the spectrum at infinity of a convenient and nondegenerate Laurent polynomial (singularity side) and the distribution of the Newton spectrum of a pol…
The paraconductivity of granular Al-films at high reduced temperatures and magnetic fields
D. Sóñora, C. Carballeira, J. J. Ponte +3
The electrical conductivity induced near the superconducting transition by thermal fluctuations was measured in different granular aluminum films. The seemingly anomalous behavior…
Strong quantum fluctuations due to competition between magnetic phases in a pyrochlore iridate
Henrik Jacobsen, Cameron D. Dashwood, Elsa Lhotel +6
We report neutron diffraction measurements of the magnetic structures in two pyrochlore iridates, Yb2Ir2O7 and Lu2Ir2O7. Both samples exhibit the all-in-all-out magnetic structure…