论文标题
玻色原子配对的绝热量子zeno动力学，具有较大的非弹性损失
Adiabatic Quantum Zeno Dynamics of Bosonic Atom Pairs with Large Inelastic Losses
论文作者
论文摘要
我们报告了实验，探讨了非常限制在光学晶格中并由近谐振激光驱动的两层原子对的非热动力学。尽管对于长期的激发态，自发发射可以忽略不计，但两体耗散是由于激发态下两个原子之间的强弹性碰撞引起的。我们证明了对非弹性损失占主导地位的量子Zeno状态中对内部状态的准绝热控制。与裸露的两体寿命相比，我们在描述耗散动力的非命中率最长的特征状态下准备每个原子对，以描述耗散动力学的耗散动力学。测得的增强因子与已准备好的``非温和装扮状态''的预期寿命定量一致。
We report on experiments exploring the non-Hermitian dynamics of pairs of two-level atoms tightly confined in an optical lattice and driven by a near-resonant laser. Although spontaneous emission is negligible for the long-lived excited state, two-body dissipation arises from strong inelastic collisions between two atoms in the excited state. We demonstrate quasi-adiabatic control of the internal state of the pairs in the quantum Zeno regime where inelastic losses dominate. Preparing each atom pair in the longest-lived eigenstate of the non-Hermitian Hamiltonian describing the dissipative dynamics, we measure a lifetime enhanced by more than two orders of magnitude in comparison to the bare two-body lifetime. The measured enhancement factor is in quantitative agreement with the expected lifetime of the prepared ``non-Hermitian dressed state''.
