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- The University of TokyoJP13 papers
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18 papers · 1 filter
Spontaneous currents in a ferromagnet - normal metal - superconductor trilayer
M. Krawiec, J. F. Annett, B. L. Gyorffy
We discuss the ground state properties of the system composed of a normal metal sandwiched between ferromagnet and superconductor within a tight binding Hubbard model. We have solv…
Simultaneous equal sums of three powers
T. D. Browning, D. R. Heath-Brown
Using a recent result of Salberger, we establish the paucity of non-trivial positive integer solutions to a certain system of diagonal Diophantine equations.
Erdos distance problem in vector spaces over finite fields
Alex Iosevich, Misha Rudnev
We study the Erdös/Falconer distance problem in vector spaces over finite fields. Let be a finite field with elements and take , .…
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…
Explicit invariant measures for products of random matrices
Jens Marklof, Yves Tourigny, Lech Wolowski
We construct explicit invariant measures for a family of infinite products of random, independent, identically-distributed elements of SL(2,C). The matrices in the product are such…