Multiplication of qubits in a doubly resonant bichromatic field
A. P. Saiko, R. Fedaruk+
Scientific-Practical Materials Research Centre NAS of Belarus, Minsk, Belarus
+Institute of Physics, University of Szczecin, 70-451 Szczecin, Poland
Abstract
Multiplication of spin qubits arises at double
resonance in a bichromatic field when the frequency of the
radio-frequency (rf) field is close to that of the Rabi
oscillation in the microwave field, provided its frequency equals
the Larmor frequency of the initial qubit. We show that the
operational multiphoton transitions of dressed qubits can be
selected by the choice of both the rotating frame and the rf
phase. In order to enhance the precision of dressed qubit
operations in the strong-field regime, the counter-rotating
component of the rf field is taken into account.