Tune-out wavelength for the thulium atom near 576 nm
Russian Quantum Center（俄罗斯量子中心）；Moscow Institute of Physics and Technology（莫斯科物理技术学院）；PN Lebedev Institute RAS（俄罗斯科学院P.N.列别捷夫物理研究所）；Bauman Moscow State Technical University（鲍曼莫斯科国立技术大学）；National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)（国立研究核大学MEPhI（莫斯科工程物理学院））
Ivan Pyrkh, Arjuna Rudnev, Daniil Pershin, Davlet Kumpilov, Ivan Cojocaru, Vladimir Khlebnikov, Pavel Aksentsev, Ayrat Ibrahimov, Sergey Kuzmin, Alexander Raska… 展开作者
Ivan Pyrkh, Arjuna Rudnev, Daniil Pershin, Davlet Kumpilov, Ivan Cojocaru, Vladimir Khlebnikov, Pavel Aksentsev, Ayrat Ibrahimov, Sergey Kuzmin, Alexander Raskatov, German Subbotin, Kirill Dyadkin, Anna Zykova, Vladislav Tsyganok, Alexey Akimov
We report the theoretical prediction and measurement of a tune-out wavelength for the ground state of the thulium atom in a linearly polarized optical dipole trap with a wavelength of approximately 576 nm. The measurements were conducted using a combination of trap frequency and RF loss spectroscopy, thus making it possible to separate the scalar and tensor parts of the total polarizability without measurements in the range of negative total polarizability. The calculated tune-out wavelength is consistent with the measured one of $575.646_{-0.014}^{+0.016}$ nm in air. The existence of the zero in the polarizability for the Tm ground state was confirmed by the trap loss experiment, which also made it possible to refine the tune-out wavelength to $575.646_{-0.004}^{+0.004}$. Despite the presence of an imaginary part of the polarizability at some wavelengths, it was experimentally demonstrated that, with a proper choice of the dipole trap polarization, it was possible to achieve Bose-Einstein condensation of thulium atoms in the range from 575.348 to 575.689 nm, covering the tune-out wavelength.
Experimental Investigation of the Hyperfine Structure of Tm I with Fourier Transform Spectroscopy, Part A: in the visible wavelength range 400 nm 700 nm
Factor of 1000 suppression of the depolarization rate in ultracold thulium collisions
Russian Quantum Center（俄罗斯量子中心）；Moscow Institute of Physics and Technology（莫斯科物理技术学院）；PN Lebedev Institute RAS（列别捷夫物理研究所）；Bauman Moscow State Technical University（鲍曼国立技术大学）
Experimental Investigation of the Hyperfine Structure of Tm I with Fourier Transform Spectroscopy Part B: in the NIR wavelength range from 700 nm to 2250 nm
Determining the $^3$P$_0$ excited-state tune-out wavelength of $^{174}$Yb in a triple-magic lattice
Ludwig-Maximilians-Universität（路德维希-马克西米利安大学）；Munich Center for Quantum Science and Technology (MCQST)（慕尼黑量子科学与技术中心）；Max-Planck-Institut für Quantenoptik（马克斯·普朗克量子光学研究所）
Vector polarizability of atomic state induced by a linearly polarized vortex beam: External control of magic, tune-out wavelengths, and heteronuclear spin oscillations
用涡旋光束进行的实验表明，人们对控制冷原子的兴趣激增。由于圆偏振光能在原子上产生矢量偏振，而傍轴线偏振光不可能产生矢量偏振，因此大多数控制方案都是由圆偏振光控制的。本文发展了一个原子态与聚焦线偏振涡旋光束相互作用的频率相关极化率理论。在这种类型的线偏振光束中自然诱导的自旋轨道耦合产生原子态的价极化率的矢量分量，服从光束的总角动量守恒。将该理论应用于$^{87}$ Sr $^{+}$离子，采用相对论耦合团簇方法精确计算了时钟跃迁的魔波长和时钟态的调谐波长。线偏振聚焦涡旋光束在动态极化率中的感应矢量分量将虚拟磁场提升到原子态。我们证明，这个虚拟的磁场，取决于光束的聚焦角和OAM，提高了灵活性的相干异质自旋振荡的自旋为1的混合物的$^{87}$ Rb和$^{23}$ Na原子。
Static and dynamic polarizabilities of Yb-ion]{Accurate determination of black-body radiation shift, magic and tune-out wavelengths for the $\rm 6S_{1/2} \rightarrow 5D_{3/2}$ clock transition in Yb$^+$
