Volume 80, Number 6, December 2007
Article Number 67008
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
Published online 13 November 2007
EPL, 80 (2007) 67008
DOI: 10.1209/0295-5075/80/67008

Modelling chemical reactions using semiconductor quantum dots

A. Yu. Smirnov1, 2, 3, S. Savel'ev1, 4, L. G. Mourokh1, 3, 5, 6 and Franco Nori1, 7

1  Frontier Research System, The Institute of Physical and Chemical Research (RIKEN) - Wako-shi, Saitama, 351-0198, Japan
2  CREST, Japan Science and Technology Agency - Kawaguchi, Saitama, 332-0012, Japan
3  Quantum Cat Analytics - 1751 67 St. E11, Brooklyn, NY 11204, USA
4  Department of Physics, Loughborough University - Loughborough LE11 3TU, UK
5  Department of Physics, Queens College, The City University of New York - Flushing, NY 11367, USA
6  Department of Engineering Science and Physics, College of Staten Island, The City University of New York Staten Island, NY 10314, USA
7  Center for Theoretical Physics, Physics Department, The University of Michigan - Ann Arbor, MI 48109-1040, USA

received 7 August 2007; accepted in final form 23 October 2007; published December 2007
published online 13 November 2007

We propose the use of semiconductor quantum dots for simulating chemical reactions, as electrons are redistributed among such artificial atoms. We show that it is possible to achieve various reaction regimes and obtain different reaction products by varying the speed of voltage changes applied to the gates forming quantum dots. Considering the simplest possible reaction, H2+H $\rightarrow$ H+H2, we show how the necessary initial state can be obtained and what voltage pulses should be applied to achieve a desirable final product. Our calculations have been performed using the Pechukas gas approach, which can be extended for more complicated reactions.

73.21.La - Quantum dots.
85.35.Be - Quantum well devices (quantum dots, quantum wires, etc.).

© EPLA 2007