He C, Jones R R
Department of Physics, University of Virginia, Charlottesville, Virginia 22904-4714, USA.
Phys Rev Lett. 2024 Jan 26;132(4):043201. doi: 10.1103/PhysRevLett.132.043201.
We have used quantum control to suppress the impact of random atom positions on coherent population transfer within atom pairs, enabling the observation of dipole-dipole driven Rabi oscillations in a Rydberg gas with hundreds of atoms. The method exploits the reduced coupling-strength sensitivity of the off-resonant Rabi frequency, and coherently amplifies the achievable population transfer in analogy to quasi-phase-matching in nonlinear optics. Simulations reproduce the experimental results and demonstrate the potential benefits of the technique to other many-body quantum control applications.
我们利用量子控制来抑制随机原子位置对原子对间相干布居转移的影响，从而能够在含有数百个原子的里德堡气体中观测到偶极-偶极驱动的拉比振荡。该方法利用了非共振拉比频率对耦合强度的敏感度降低这一特性，并类似于非线性光学中的准相位匹配，相干地放大了可实现的布居转移。模拟结果再现了实验结果，并证明了该技术对其他多体量子控制应用的潜在益处。
