194 citations · 238 across the 3 of their papers we have counts for
5 papers · 1 filter
Electron Spin Dephasing due to Hyperfine Interactions with a Nuclear Spin Bath
L. Cywinski, W. M. Witzel, S. Das Sarma
We investigate pure dephasing decoherence (free induction decay and spin echo) of a spin qubit interacting with a nuclear spin bath. While for infinite magnetic field B the only de…
Quantum decoherence of a charge qubit in a spin-fermion model
R. M. Lutchyn, L. Cywinski, Cody P. Nave +1
We consider quantum decoherence in solid-state systems by studying the transverse dynamics of a single qubit interacting with a fermionic bath and driven by external pulses. Our in…
Electric readout of magnetization dynamics in a ferromagnet-semiconductor system
L. Cywinski, H. Dery, L. J. Sham
We apply an analysis of time-dependent spin-polarized current in a semiconductor channel at room temperature to establish how the magnetization configuration and dynamics of three…
Spintronics for electrical measurement of light polarization
H. Dery, L. Cywinski, L. J. Sham
The helicity of a circularly polarized light beam may be determined by the spin direction of photo-excited electrons in a III-V semiconductor. We present a theoretical demonstratio…
Spin transference and magnetoresistance amplification in a transistor
Hanan Dery, Lukasz Cywinski, Lu J. Sham
A current problem in semiconductor spin-based electronics is the difficulty of experimentally expressing the effect of spin-polarized current in electrical circuit measurements. We…