Molecular quantum computation by using ultrashort intense laser pulses under the influence of non-Markovian dissipation

Boris D. Fainberg, Vladimir A. Gorbunov

Summary form only given. The effect of relaxation processes on a coherent excitation of a molecule coupled with a dissipative environment is an intriguing question. The purpose of this work is to answer the following question: How does dissipative environment influence on a coherent excitation of a molecule? We have studied the influence of the chirp rate on the excited state population after the completion of pulse action. We used a model of Gaussian-Markovian modulation for description of relaxation processes.

Masahiro Kitagawa

И. В. Федотов, A. D. Savvin, Andrei B. Fedotov +1 more

We show that sequences of femtosecond laser pulses can control the rotational Raman response of a gas mixture, giving rise to a tunable manifold of echo recurrences in the retarded nonlinear-optical response of the gas. Tailored phase masks for high-intensity ultrashort laser pulses are experimentally demonstrated using molecular rotations in the gas phase driven by optimally time-ordered pulse sequences.

Alex Brown, Ryan R. Zaari

Szczepan Chelkowski, André D. Bandrauk

The Maxwell–Schrödinger equations describing the ultrashort laser pulse propagation in multilevel molecular media are shown to be analytically solvable and to reduce to nonlinear multisine-Gordon equations for certain models of the field–molecule system. Special cases of level schemes are shown to lead to soliton propagation. A numerical study is presented in order to examine the effect of nonresonant (virtual) transitions on pulse propagation and amplification in a three-level molecular system as a function of intensity and detuning.

J. Mizrahi, B. Neyenhuis, K. G. Johnson +4 more