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13 papers · 2 filters
Pauli Spin Blockade in a Highly Tunable Silicon Double Quantum Dot
N. S. Lai, W. H. Lim, C. H. Yang +5
Double quantum dots are convenient solid-state platforms to encode quantum information. Two-electron spin states can be conveniently detected and manipulated using strong quantum s…
Quantum limited amplification with a nonlinear cavity detector
Catherine Laflamme, Aashish A. Clerk
We consider the quantum measurement properties of a driven cavity with a Kerr-type nonlinearity which is used to amplify a dispersively coupled input signal. Focusing on an operati…
Anomalous spin-resolved point-contact transmission of holes due to cubic Rashba spin-orbit coupling
Stefano Chesi, Gabriele F. Giuliani, L. P. Rokhinson +2
Evidence is presented for the finite wave vector crossing of the two lowest one-dimensional spin-split subbands in quantum point contacts fabricated from two-dimensional hole gases…
Graphene spintronics: the role of ferromagnetic electrodes
Jesse Maassen, Wei Ji, Hong Guo
We report a first principles study of spin-transport under finite bias through a graphene-ferromagnet (FM) interface, where FM=Co(111), Ni(111). The use of Co and Ni electrodes ach…
First principles study of electronic transport through a Cu(111)|graphene junction
Jesse Maassen, Wei Ji, Hong Guo
We report first principles investigations of the nonequilibrium transport properties of a Cu(111)|graphene interface. The Cu(111) electrode is found to induce a transmission minimu…
Scattering approach to backaction in coherent nanoelectromechanical systems
Steven D. Bennett, Jesse Maassen, Aashish A. Clerk
We present theoretical results for the backaction force noise and damping of a mechanical oscillator whose position is measured by a mesoscopic conductor. Our scattering approach i…