791 citations · 3.2k across the 56 of their papers we have counts for
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Silicon in the Quantum Limit: Quantum Computing and Decoherence in Silicon Architectures
Charles Tahan
Semiconductor architectures hold promise for quantum information processing (QIP) applications due to their large industrial base and perceived scalability potential. Electron spin…
Valley Splitting Theory of SiGe/Si/SiGe Quantum Wells
Mark Friesen, Sucismita Chutia, Charles Tahan +1
We present an effective mass theory for SiGe/Si/SiGe quantum wells, with an emphasis on calculating the valley splitting. The theory introduces a valley coupling parameter, ,…
Electron spin coherence in Si/SiGe quantum wells
J. L. Truitt, K. A. Slinker, K. L. M. Lewis +11
The mechanisms limiting the spin coherence time of electrons are of great importance for spintronics. We present electron spin resonance (ESR) and transport measurements of six dif…
Coulomb Blockade in a Silicon/Silicon-Germanium Two-Dimensional Electron Gas Quantum Dot
L. J. Klein, K. A. Slinker, J. L. Truitt +14
We report the fabrication and electrical characterization of a single electron transistor in a modulation doped silicon/silicon-germanium heterostructure. The quantum dot is fabric…
Spin Readout and Initialization in a Semiconductor Quantum Dot
Mark Friesen, Charles Tahan, Robert Joynt +1
Electron spin qubits in semiconductors are attractive from the viewpoint of long coherence times. However, single spin measurement is challenging. Several promising schemes incorpo…
Decoherence of electron spin qubits in Si-based quantum computers
Charles Tahan, Mark Friesen, Robert Joynt
Direct phonon spin-lattice relaxation of an electron qubit bound by a donor impurity or quantum dot in SiGe heterostructures is investigated. The aim is to evaluate the importance…