wps去重函数unique wps去重( 四 )_生活百科

Nonadiabatic QED Correction to the Dissociation Energy of the Hydrogen Molecule
Mariusz Puchalski, et al.
Phys. Rev. Lett. 122, 103003 (2019)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.103003
里德堡三聚物Cs(6s)?Cs(nd)中的
有效三体间相互作用
Ultralong-range Rydberg trimer molecules are spectroscopically observed in an ultracold gas of Cs(nd3/2) atoms. The anisotropy of the atomic Rydberg state allows for the formation of angulartrimers, whose energies may not be obtained from integer multiples of dimerenergies. These non-additive trimers coexist with Rydberg dimers. The existenceof such effective three-body interactions is confirmed with the observation of asymmetric line profiles and interpreted by a theoretical approach that includes relativistic spin interactions. Simulations of the observed spectra with and without angular trimer lines lend convincing support to the existence of effective three-body interactions.
Effective Three-Body Interactions in Cs(6s)?Cs(nd) Rydberg Trimers
Christian Fey, et al.
Phys. Rev. Lett. 122, 103001 (2019）
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.103001
利用扭曲光子的拉曼光学活性
拉曼光学活性利用振动光谱技术获得手性分子的详细结构信息的基础。这种效应集中在材料手的手性的圆偏振光的旋光性之间的相互作用。具有光学轨道角动量的扭曲光带有顺时针或逆时针旋转的螺旋相位波前，因此具有完全不同于极化性的手性。本文提出了一种全新的拉曼光学活性方法，它对自旋-轨道相互作用对入射扭曲光子的旋光性敏感，代表了一种新的手性光学光谱技术。
Raman Optical Activity Using Twisted Photons
Kayn A. Forbes
Phys. Rev. Lett. 122, 103201 (2019)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.103201
通过腔输出光子计数快速生成
自旋-1原子中的多体纠缠
We propose a simple and efficient method for generating metrologically useful quantum entanglement in an ensemble of spin-1 atoms that interacts with a high-finesse optical cavity mode. It requires straight forward preparation of N atoms in the mF=0 sublevel, tailoring of the atom-field interaction to give an effective Tavis-Cummings model for the collective spin-1 ensemble, and a photon counting measurement on the cavity output field. The photon number provides a projective measurement of the collective spin length S, which, for the chosen initial state, is heavily weighted around valuesS?√N, for which the corresponding spin states are strongly entangled and exhibit Heisenberg scaling of the metrological sensitivity withN, as quantified by the quantum Fisher information.
Rapid Production of Many-Body Entanglement in Spin-1 Atoms via Cavity Output Photon Counting
Stuart J. Masson and Scott Parkins
Phys. Rev. Lett. 122, 103601 (2019)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.103601
非线性动力学与流体力学
责编:兰岳恒
双光子-声子散射的直接三维测量折射率
Antonio等人开发了一种显微镜技术，可以测量局部折射率而无需对电磁辐射的光学相位延迟进行采样。为此，Antonio等人设计并实验证明了一种具有两个共定位布里渊散射相互作用的装置，它们耦合到一个共同的声学声子轴; 在这种情况下，布里渊频移的比率取决于折射率，而不取决于样品的任何其他机械和光学性质。将光谱测量结果集成在共聚焦显微镜中，折射率以微米级三维分辨率进行映射。由于在epi检测中需要探查折射率并且对样品的几何尺寸没有假设，该方法可用于表征生物细胞和组织。（王娟娟）
Direct Three-Dimensional Measurement of Refractive Index via Dual Photon-Phonon Scattering
Antonio Fiore, et al.
Phys. Rev. Lett. 122, 103901 (2019)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.103901
多模光纤中的二维流体动力学
湍流和空间光束凝聚
We show that Kerr beamself-cleaning results from parametric mode mixing instabilities that generate anumber of nonlinearly interacting modes with randomized phases—optical wave turbulence, followed by a direct and inverse cascade towards high mode numbers and condensation into the fundamental mode, respectively. This opticalself-organization effect is an analogue to wave condensation that is well known in hydrodynamic 2D turbulence. （王娟娟）
Hydrodynamic 2D Turbulence and Spatial Beam Condensation in Multimode Optical Fibers
E. V. Podivilov, et al.
Phys. Rev. Lett. 122, 103902 (2019)
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.103902
光子学中沙漏节点线的观察
最近证实了三维动量空间中呈现线简并节点线半金属的存在。通常，节点线半金属的存在受到特殊对称性的保护，例如镜像对称。然而，这些对称性通常是必要但不是充分条件，因为即使没有破坏它们，节点线也可以被消灭。最近，具有沙漏形能带结构的节点线半金属成为更鲁棒的候选，其线简并不能被消灭而同时保留所有空间对称性。在这里，Lingbo等人第一次通过实验证明在微波频率下光子晶体中存在沙漏节点线（HNL）。Lingbo等人通过空间场的近场扫描，随后用傅立叶变换来观察HNL 。观察到的光子HNL位于一个清晰且较大的频率间隔内，并且不受保对称扰动的影响，这为光子应用(例如反常量子振荡、自发辐射和共振散射)提供了理想的鲁棒平台。（王娟娟）