arXiv: Atomic Physics最新文献_第8页

High-accuracy inertial measurements with cold-atom sensors 用冷原子传感器进行高精度惯性测量

arXiv: Atomic Physics Pub Date : 2020-03-27 DOI: 10.1116/5.0009093

R. Geiger, A. Landragin, S. Merlet, F. Pereira dos Santos

引用次数: 103

Many-electron effects in the hyperfine splitting of lithiumlike ions 类锂离子超细分裂中的多电子效应

arXiv: Atomic Physics Pub Date : 2020-03-25 DOI: 10.1103/PhysRevResearch.2.013364

V. P. Kosheleva, A. Volotka, D. Glazov, S. Fritzsche

引用次数: 1

Extended virtual detector theory including quantum interferences 包括量子干涉的扩展虚探测器理论

arXiv: Atomic Physics Pub Date : 2020-03-11 DOI: 10.1063/5.0040193

R. Xu, Xu Wang

引用次数: 3

Indium tin oxide films meet circular Rydberg atoms: Prospects for novel quantum simulation schemes 氧化铟锡薄膜遇到圆形里德伯原子:新量子模拟方案的前景

arXiv: Atomic Physics Pub Date : 2020-03-06 DOI: 10.1103/PHYSREVRESEARCH.2.023192

F. Meinert, C. Hölzl, M. Nebioğlu, Alessandro D'Arnese, Philipp Karl, M. Dressel, M. Scheffler

引用次数: 9

Strong-field frustrated double ionization of argon atoms 氩原子的强场受挫双电离

arXiv: Atomic Physics Pub Date : 2020-02-26 DOI: 10.1103/physreva.102.023103

Shi Chen, J. Chen, G. Paulus, Huipeng Kang

引用次数: 8

Focal-shape effects on the efficiency of the tunnel-ionization probe for extreme laser intensities 聚焦形状对极端激光强度下隧道电离探针效率的影响

arXiv: Atomic Physics Pub Date : 2020-02-25 DOI: 10.1063/5.0005380

M. Ciappina, E. E. Peganov, S. Popruzhenko

{"title":"Focal-shape effects on the efficiency of the tunnel-ionization probe for extreme laser intensities","authors":"M. Ciappina, E. E. Peganov, S. Popruzhenko","doi":"10.1063/5.0005380","DOIUrl":"https://doi.org/10.1063/5.0005380","url":null,"abstract":"We examine the effect of laser focusing on the potential of a recently discussed scheme [M.F. Ciappina {em et al}, Phys. Rev. A 99, 043405 (2019); Las. Phys. Lett. 17, 025301 (2020)] for in situ determination of ultra-high intensities of electromagnetic radiation delivered by multi-petawatt laser facilities. Using two model intensity distributions in the focus of a laser beam, we show how the resulting yields of highly charged ions generated in the process of multiple sequential tunneling of electrons from atoms, depend on the shape of these distributions. Our findings lead to the conclusion that an accurate extraction of the peak laser intensity can be made either in the near-threshold regime when the production of the highest charge state happens only in a small part of the laser focus close to the point where the intensity is maximal, or through the determination of the points where the ion yields of close charges become equal. We show that, for realistic parameters of the gas target, the number of ions generated in the central part of the focus in the threshold regime should be sufficient for a reliable measurement with highly sensitive time-of-flight detectors. Although positions of the intersection points generally depend on the focal shape, they can be used to localize the peak intensity value in a certain interval. Additionally to this analysis, we discuss the method in comparison to other recently proposed approaches for direct measurement of extreme laser intensities.","PeriodicalId":8441,"journal":{"name":"arXiv: Atomic Physics","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73715855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Optical magnetometer: Quantum resonances at pumping repetition rate of 1/n of the Larmor frequency 光磁强计:在拉莫尔频率的1/n的泵浦重复率下的量子共振

arXiv: Atomic Physics Pub Date : 2020-02-20 DOI: 10.1063/5.0022629

A. Ben-Amar Baranga, A. Gusarov, G. Koganov, D. Levron, R. Shuker

引用次数: 2

Dynamics within a tunable harmonic plus quartic waveguide 可调谐谐波加四次方波导内的动力学

arXiv: Atomic Physics Pub Date : 2020-02-20 DOI: 10.1103/physreva.102.033327

R. Kohn, James A. Stickney

引用次数: 0

Vapor-Cell-Based Atomic Electrometry for Detection Frequencies below 1 kHz 探测频率低于1khz的气相电池原子电测定法

arXiv: Atomic Physics Pub Date : 2020-02-11 DOI: 10.1103/physrevapplied.13.054034

Y. Jau, T. Carter

引用次数: 30

Optical response of atom chains beyond the limit of low light intensity: The validity of the linear classical oscillator model 超过弱光强极限的原子链光学响应:线性经典振子模型的有效性

arXiv: Atomic Physics Pub Date : 2020-02-04 DOI: 10.1103/PHYSREVRESEARCH.2.023273

L. Williamson, J. Ruostekoski

{"title":"Optical response of atom chains beyond the limit of low light intensity: The validity of the linear classical oscillator model","authors":"L. Williamson, J. Ruostekoski","doi":"10.1103/PHYSREVRESEARCH.2.023273","DOIUrl":"https://doi.org/10.1103/PHYSREVRESEARCH.2.023273","url":null,"abstract":"Atoms subject to weak coherent incident light can be treated as coupled classical linear oscillators, supporting subradiant and superradiant collective excitation eigenmodes. We identify the limits of validity of this emph{linear classical oscillator model} at increasing intensities of the drive by solving the quantum many-body master equation for coherent and incoherent scattering from a chain of trapped atoms. We show that deviations from the linear classical oscillator model depend sensitively on the resonance linewidths $upsilon_alpha$ of the collective eigenmodes excited by light, with the intensity at which substantial deviation occurs scaling as a powerlaw of $upsilon_alpha$. The linear classical oscillator model then becomes inaccurate at much lower intensities for subradiant collective excitations than superradiant ones, with an example system of seven atoms resulting in critical incident light intensities differing by a factor of 30 between the two cases. By individually exciting eigenmodes we find that this critical intensity has a $upsilon_alpha^{2.5}$ scaling for narrower resonances and more strongly interacting systems, while it approaches a $upsilon_alpha^3$ scaling for broader resonances and when the dipole-dipole interactions are reduced. The $upsilon_alpha^3$ scaling also corresponds to the semiclassical result whereby quantum fluctuations between the atoms have been neglected. We study both the case of perfectly mode-matched drives and the case of standing wave drives, with significant differences between the two cases appearing only at very subradiant modes and positions of Fano resonances.","PeriodicalId":8441,"journal":{"name":"arXiv: Atomic Physics","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76045548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22