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7 papers · 1 filter
Symmetry breaking for ratchet transport in presence of interactions and magnetic field
Leonardo Ermann, Alexei D. Chepelianskii, Dima L. Shepelyansky
We study the microwave induced ratchet transport of two-dimensional electrons on an oriented semidisk Galton board. The magnetic field symmetries of ratchet transport are analyzed…
Particle Entanglement Spectra for Quantum Hall states on Lattices
A. Sterdyniak, N. Regnault, G. Moller
We use particle entanglement spectra to characterize bosonic quantum Hall states on lattices, motivated by recent studies of bosonic atoms on optical lattices. Unlike for the relat…
Anomalous Upper Critical Field in CeCoIn_5/YbCoIn_5 Superlattices with a Rashba-type Heavy Fermion Interface
S. K. Goh, Y. Mizukami, H. Shishido +9
We report a highly unusual angular variation of the upper critical field (H_c2) in epitaxial superlattices CeCoIn_5(n)/YbCoIn_5(5), formed by alternating layers of n and a 5 unit-c…
Importance of many body effects in the kernel of hemoglobin for ligand binding
Cedric Weber, David D. O'Regan, Nicholas D. M. Hine +3
We propose a mechanism for binding of diatomic ligands to heme based on a dynamical orbital selection process. This scenario may be described as bonding determined by local valence…
PageRank of integers
K. M. Frahm, A. D. Chepelianskii, D. L. Shepelyansky
We build up a directed network tracing links from a given integer to its divisors and analyze the properties of the Google matrix of this network. The PageRank vector of this matri…
Fabrication and characterisation of ambipolar devices on an undoped AlGaAs/GaAs heterostructure
J. C. H. Chen, D. Q. Wang, O. Klochan +7
We have fabricated AlGaAs/GaAs heterostructure devices in which the conduction channel can be populated with either electrons or holes simply by changing the polarity of a gate bia…