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Title: Zeno-logic applications of semiconductor quantum dots

Abstract

Microscopic calculations show that CdSe-based semiconductor quantum dots with confined exciton and biexciton states are suitable candidates for Zeno-logic applications. The frequencies of the control and signal fields are chosen to guarantee very high transmission of the individual beams. If both fields are present simultaneously, they are strongly absorbed due to efficient ground-state-to-biexciton transitions. The optical Bloch equations for a three-level quantum-dot model with self-consistent light-matter coupling are solved numerically. The influence of dephasing and/or inhomogeneous dot distributions is analyzed and the conditions for satisfactory device operation are identified.

Authors:
;  [1]; ;  [2];  [1]
  1. Optical Sciences Center, University of Arizona, Tucson, Arizona 85721 (United States)
  2. Department of Physics and Material Sciences Center, Philipps-University, D-35032 Marburg (Germany)
Publication Date:
OSTI Identifier:
21408930
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 81; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.81.053852; (c) 2010 The American Physical Society; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; BEAMS; BLOCH EQUATIONS; CADMIUM SELENIDES; CONTROL; COUPLING; DISTRIBUTION; EQUIPMENT; GROUND STATES; MATTER; QUANTUM DOTS; SEMICONDUCTOR MATERIALS; SIGNALS; TRANSMISSION; VISIBLE RADIATION; CADMIUM COMPOUNDS; CHALCOGENIDES; ELECTROMAGNETIC RADIATION; ENERGY LEVELS; EQUATIONS; MATERIALS; NANOSTRUCTURES; RADIATIONS; SELENIDES; SELENIUM COMPOUNDS

Citation Formats

Schneebeli, L, Peyghambarian, N, Feldtmann, T, Kira, M, Koch, S W, and Department of Physics and Material Sciences Center, Philipps-University, D-35032 Marburg. Zeno-logic applications of semiconductor quantum dots. United States: N. p., 2010. Web. doi:10.1103/PHYSREVA.81.053852.
Schneebeli, L, Peyghambarian, N, Feldtmann, T, Kira, M, Koch, S W, & Department of Physics and Material Sciences Center, Philipps-University, D-35032 Marburg. Zeno-logic applications of semiconductor quantum dots. United States. doi:10.1103/PHYSREVA.81.053852.
Schneebeli, L, Peyghambarian, N, Feldtmann, T, Kira, M, Koch, S W, and Department of Physics and Material Sciences Center, Philipps-University, D-35032 Marburg. Sat . "Zeno-logic applications of semiconductor quantum dots". United States. doi:10.1103/PHYSREVA.81.053852.
@article{osti_21408930,
title = {Zeno-logic applications of semiconductor quantum dots},
author = {Schneebeli, L and Peyghambarian, N and Feldtmann, T and Kira, M and Koch, S W and Department of Physics and Material Sciences Center, Philipps-University, D-35032 Marburg},
abstractNote = {Microscopic calculations show that CdSe-based semiconductor quantum dots with confined exciton and biexciton states are suitable candidates for Zeno-logic applications. The frequencies of the control and signal fields are chosen to guarantee very high transmission of the individual beams. If both fields are present simultaneously, they are strongly absorbed due to efficient ground-state-to-biexciton transitions. The optical Bloch equations for a three-level quantum-dot model with self-consistent light-matter coupling are solved numerically. The influence of dephasing and/or inhomogeneous dot distributions is analyzed and the conditions for satisfactory device operation are identified.},
doi = {10.1103/PHYSREVA.81.053852},
journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 81,
place = {United States},
year = {2010},
month = {5}
}