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Rate equations for Coulomb blockade with ferromagnetic leads
Stephan Braig, Piet W. Brouwer
We present a density-matrix rate-equation approach to sequential tunneling through a metal particle weakly coupled to ferromagnetic leads. The density-matrix description is able to…
Mesoscopic bound on anisotropy in itinerant ferromagnets
Piet W. Brouwer, Denis A. Gorokhov
We calculate the anisotropy energy of a single-domain ferromagnetic particle in which the only source of anisotropy is the presence of non-magnetic impurities. We find that such an…
Weak Coulomb blockade effect in quantum dots
Piet W. Brouwer, Austen Lamacraft, Karsten Flensberg
We develop the general non-equilibrium theory of transport through a quantum dot, including Coulomb Blockade effects via a 1/N expansion, where N is the number of scattering channe…
Measurement of long-range wavefunction correlations in an open microwave billiard
Y. -H. Kim, U. Kuhl, H. -J. Stöckmann +1
We investigate the statistical properties of wavefunctions in an open chaotic cavity. When the number of channels in the openings of the billiard is increased by varying the freque…
Exponential sensitivity to dephasing of electrical conduction through a quantum dot
J. Tworzydlo, A. Tajic, H. Schomerus +2
According to random-matrix theory, interference effects in the conductance of a ballistic chaotic quantum dot should vanish when the dephasing time b…