In our study we simulated a quantum computer that uses molecular vibrations to encode qubits and a shaped femtosecond laser pulse that acts as the quantum gate performing the calculation.  Computations of quantum gates such as Hadamard (one qubit gate) or Control NOT (two qubits gate) are carried out cycling populations between these computing states by the shaped femtosecond laser pulse. A genetic algorithm searches for the best shaped laser pulse such that fidelity is maximized. In our work, we aim to determine the maximum fidelity of different quantum gates and how it is affected by noise effects such as molecular rotations, vibrational states that not participate in the computing set of states and also laser inhomogeneities. Finally, we attempted to answer the question if implementing quantum error correction algorithms in a quantum computer based on vibrational qubits is possible.

Accurate execution of quantum gates in a vibrational qubit quantum computer

243rd National Meeting (2012)

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