双共振双色场中量子比特的倍增
Multiplication of Qubits in a Doubly Resonant Bichromatic Field
摘要：
在双色场中，当射频场的频率接近微波场中拉比振荡的频率时，自旋量子比特的倍增发生在双共振处，前提是射频场的频率等于初始量子比特的拉莫尔频率。我们表明，可以通过选择旋转坐标系和射频相位来选择修饰量子比特的操作多光子跃迁。为了提高强场区域中修饰量子比特操作的精度，考虑了射频场的反转分量。
英文摘要：
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.
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