Bistability and steady-state spin squeezing in diamond nanostructures controlled by a nanomechanical resonator

作者：Ma, Yong-Hong^*; Zhang, Xue-Feng; Song, Jie; Wu, E.

来源：Annals of Physics, 2016, 369: 36-44.

DOI：10.1016/j.aop.2016.03.001

• NV center
• Spin squeezing
• Bistability

As the quantum states of nitrogen vacancy (NV) center can be coherently manipulated and obtained at room temperature, it is important to generate steady-state spin squeezing In spin qubits associated with NV impurities in diamond. With this task we consider a new type of a hybrid magneto-nano-electromechanical resonator, the functionality of which is based on a magnetic-field induced deflection of an appropriate cantilever that oscillates between NV spins in diamond, We show that there is bistability and spin squeezing state due to the presence of the microwave field, despite the damping from mechanical damping. Moreover, we find that bistability and spin squeezing can be controlled by the microwave field and the parameter V-z. Our scheme may have the potential application on spin clocks, magnetometers, and other measurements based on spin spin system in diamond nanostructures.

• 出版日期2016-6
• 单位哈尔滨工业大学; 内蒙古科技大学