利用空间选择泵浦和反馈稳定原子laser

基于原子蒸气中速度选择光抽运的窄带可调谐滤波器

Narrowband tunable filter based on velocity-selective optical pumping in an atomic vapor

我们展示了一个可调谐的，窄带滤光片的基础上光泵诱导的圆二色性在铷蒸气。该滤波器的峰值透过率为14.6%，线宽为80 MHz，带外消光大于35 dB。透射峰可以在795 nm处铷原子D1线的多普勒线宽范围内调谐。虽然其他原子过滤器工作在远离吸收的频率，所提出的技术提供了与原子介质共振的光，可用于原子-光子相互作用实验。这种技术可以很容易地扩展到其他碱金属原子。

Stabilizing entanglement via symmetry-selective bath engineering in superconducting qubits

Bath engineering, which utilizes coupling to lossy modes in a quantum system to generate non-trivial steady states, is a tantalizing alternative to gate- and measurement-based quantum science. Here, we demonstrate dissipative stabilization of entanglement between two superconducting transmon qubits in a symmetry-selective manner. We utilize the engineered symmetries of the dissipative environment to stabilize a target Bell state; we further demonstrate suppression of the Bell state of opposite symmetry due to parity selection rules. This implementation is resource-efficient, achieves a steady-…

Selective Rydberg pumping via strong dipole blockade

The resonant dipole-dipole interaction between highly excited Rydberg levels dominates the interaction of neutral atoms at short distances scaling as $1/r^3$. Here we take advantage of the combined effects of strong dipole-dipole interaction and multifrequency driving fields to propose one type of selective Rydberg pumping mechanism. In the computational basis of two atoms $\{|00\rangle, |01\rangle,|10\rangle,|11\rangle\}$, this mechanism allows $|11\rangle$ to be resonantly pumped upwards to the single-excited Rydberg states while the transitions of the other three states are suppressed. From…

通过选择性里德伯泵浦实现中性原子的完整交换门与受控交换门

Holonomic swap and controlled-swap gates of neutral atoms via selective Rydberg pumping

提出基于选择性里德伯泵浦和含时软控制的中性原子完整交换门快速实现方案，并扩展至三量子比特受控交换门，以抑制失谐与退相干。

选择性拓扑泵浦从Floquet规范场

Occupation-selective topological pumping from Floquet gauge fields

本文研究了在密度依赖的跃迁中，通过动态职业条件变量促进隧穿，导致职业选择性拓扑泵浦。两体束缚态获得不同于单粒子的陈数，并在单粒子泵为平凡时表现出量化传输，包括反向传播响应。

具有局域激发的非厄米规范激光阵列：反常阈值与选择性泵浦的广义原理

Non-Hermitian gauged laser arrays with localized excitations: Anomalous threshold and generalized principle of selective pumping

本文研究局域泵浦下非厄米激光阵列的反常等阈值现象，通过转移矩阵揭示耦合结与光子环境的能量交换机制，并提出由泵浦、模式及双正交伙伴三重乘积决定的广义选择性泵浦原理。