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Two-spin dephasing by electron-phonon interaction in semiconductor double quantum dots
Two-spin dephasing electron-phonon interaction semiconductor double quantum dots
2010/11/11
We study electron-phonon interaction induced decoherence between two-electron singlet and triplet states in a semiconductor double quantum dot using a spin-boson model. We investigate the onset and ti...
Auto- and Cross-Correlation-Functions as entanglement quantifiers in semiconductor microcavities
Auto- Cross-Correlation-Functions entanglement quantifiers semiconductor microcavities
2010/11/11
We characterize the dynamics of the exciton-photon entanglement within semiconductor microcavities using the Wotters concurrence, founding a closed analytical expression for it, using an oversimplifi...
High-energy long-lived resonance of electrons in fractal-like semiconductor heterostructures
High-energy long-lived resonance electrons fractal-like semiconductor heterostructures
2010/11/9
A fractal-like alignment of quantum wells is shown to accommodate resonant states with long lifetimes. For the parameters of the semiconductor heterostructure GaAs/Al$_{0.4}$Ga$_{0.6}$As with the wel...
New ’1/f noise’ discovery promises to improve semiconductor-based sensors
sensitive sensors semiconductor
2007/5/14
ARGONNE, Ill. (May 10, 2007) — More sensitive sensors and detectors based on semiconductor electronics could result from new findings by researchers from the United States, Norway and Russia.
Dimensional Crossover in Semiconductor Structures: From 3D Electron Transport to Ballistic Electrons in 1D
Semiconductor Structures 3D Electron Transport Ballistic Electrons
2010/4/9
Modern semiconductor technologies have made possible special devices in which a gradual dimensional crossover may be induced by means of applied electric fields. Two specific examples are described. T...
Single Mode Optical Radiation Distribution and Reflectivity Calculations in Novel-Hot Electron Light Emission and Lasing In Semiconductor Heterostructures VCSELs
Optical Radiation Distribution Electron Light Emission Reflectivity Calculations
2010/4/12
In this work, we calculate the power reflectivity in vertical cavity surface emitting lasers (VCSELs) using a new method. In VCSELs, the stop band of the reflectivity spectrum should exhibit a dip at ...