论文标题
tayling bose-内施泰因冷凝水环境，用于rydberg杂质
Tayloring Bose-Einstein condensate environments for a Rydberg impurity
论文作者
论文摘要
实验表明，在Bose-Einstein凝结中激发特定Rydberg状态的原子会引起声子的显着激发。如果将rydberg原子带入电子叠加态，则这种与声子的耦合会导致反谐波。我们为治疗后者提供了理论基础。为此，我们使用分析和数值技术的组合评估了Rydberg-Phonon耦合系数。从这些系数中，我们计算浴浴相关函数，光谱密度和重新组织能量。所有这些都量化了环境的影响，并形成了跟进开放量子系统技术的基本输入。我们发现，沐浴相关的幅度尺寸像电源法$ν^{ - 5} $与主量子数$ν$，而重组能量的尺度如$ n { - 3} $，反映了Rydberg Atomic属性的极端可调性。因此，冷凝水中的rydberg杂质构成了一个非平凡的开放量子系统，具有特殊控制的系统，耦合和环保性哈密顿量。
Experiments have demonstrated that atoms excited to specific Rydberg states within Bose-Einstein condensates cause significant excitation of phonons. If the Rydberg atom is brought into an electronic superposition state, this coupling to phonons leads to decoherence. We provide the theoretical basis for the treatment of the latter. To this end, we evaluate Rydberg-phonon coupling coefficients using a combination of analytical and numerical techniques. From these coefficients, we calculate bath correlation functions, spectral densities and re-organisation energies. All these quantify the influence of the environment and form essential inputs for follow up open quantum system techniques. We find that the amplitude of bath correlations scales like the power law $ν^{-5}$ with the principal quantum number $ν$, while re-organisation energies scale like $ν^{-3}$, reflecting the extreme tunability of Rydberg atomic properties. Rydberg impurities in condensates thus constitute a non-trivial open-quantum system with exceptionally controlled system, coupling and environmental Hamiltonians.
