In recent years, the physics community has experienced a revival of interest in spin effects in solid state systems. On one hand, the solid state systems, particularly, semiconductors and …
WA Coish, J Baugh - physica status solidi (b), 2009 - Wiley Online Library
We review recent theoretical and experimental advances toward understanding the effects of nuclear spins in confined nanostructures. These systems, which include quantum dots …
We polarize nuclear spins in a GaAs double quantum dot by controlling two-electron spin states near the anticrossing of the singlet (S) and m S=+ 1 triplet (T+) using pulsed gates. An …
Central spin systems, in which a central spin is singled out and interacts nonlocally with several bath spins, are paradigmatic models for nitrogen-vacancy centers and quantum …
M Bortz, J Stolze - Physical Review B—Condensed Matter and Materials …, 2007 - APS
We study the dynamics of a single spin 1∕ 2 coupled to a bath of spins 1∕ 2 by inhomogeneous Heisenberg couplings including a central magnetic field. This central-spin …
EI Rashba - Physical Review B—Condensed Matter and Materials …, 2008 - APS
Very recently, the electric dipole spin resonance (EDSR) of single electrons in quantum dots was discovered by three independent experimental groups. Remarkably, these observations …
We obtain analytically close forms of benchmark quantum dynamics of the collapse and revival (CR), the reduced density matrix, Von Neumann entropy, and fidelity for the XXZ …
J Fischer, M Trif, WA Coish, D Loss - Solid state communications, 2009 - Elsevier
We review recent studies on spin decoherence of electrons and holes in quasi-two- dimensional quantum dots, as well as electron-spin relaxation in nanowire quantum dots …
M Bortz, S Eggert, C Schneider, R Stübner… - Physical Review B …, 2010 - APS
The dynamics and decoherence of an electronic spin-1/2 qubit coupled to a bath of nuclear spins via hyperfine interactions in a quantum dot is studied. We show how exact results from …