Elements of quantum computation are implemented in a vibrationally excited
molecule applying optimal control theory. The two different IR-active modes
of acetylene are taken as a two-qubit-system. Optimal control theory is us
ed to design laser pulses that allow transitions within each qubit separate
ly. Calculations for initial state preparation and basic quantum gates are
presented. (C) 2001 Elsevier Science B.V. All rights reserved.