Results 41 to 50 of about 2,598,112 (267)

Optical Lattice Clocks with Weakly Bound Molecules [PDF]

Physical Review Letters, 2018
5 pages, 2 figures, 3 ...
openaire   +3 more sources

Frequency Metrology with Optical Lattice Clocks

, 2010
The precision measurement of time and frequency is of great interest for a wide range of applications, including fundamental science and technologies that support broadband communication networks and the navigation with global positioning systems ...
Feng-Lei Hong, Hidetoshi Katori
core   +1 more source

A High-Precision Offset Frequency Locking Technique With Delay Line Reference and AOM-Based Compensation

IEEE Photonics Journal, 2021
We demonstrate a high-precision, high robustness frequency offset locking method,which made the frequency offset between mode-locked laser and continuous-wave laser below less than 3 Hz.The coarse frequency lock control is realized by the feedback ...
Xing Chen, Qian Liu, Yusheng Wang, Fei Meng, Bin Luo   +4 more
doaj   +1 more source

A transportable optical lattice clock

Journal of Physics: Conference Series, 2016
We present the experimental setup and first results of PTB's transportable 87Sr clock. It consists of a physics package, several compact laser breadboards, and a transportable high finesse cavity for the clock laser. A comparison of the transportable system with our stationary optical lattice clock yields an instability of 2.2 x 10-15 √s/τ for the ...
Stefan Vogt, Sebastian Häfner, Jacopo Grotti, Silvio Koller, Ali Al-Masoudi, Uwe Sterr, Christian Lisdat   +6 more
openaire   +1 more source

GAD65 Antibody ELISA With Extended Reportable Range: Validation and Guidance for Neurological Practice

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To (1) validate GAD65‐ELISA detection and quantification for type 1 diabetes mellitus and autoimmune neurological diagnoses, (2) correlate ELISA results (reference range < 5 IU/mL) with established radioimmunoprecipitation assay (RIA; ≤ 0.02 nmol/L), and (3) define ELISA clinical utility and pitfalls.
Andrew McKeon, Dana Olofson, Diana Anissian, Divyanshu Dubey, Eoin P. Flanagan, Max C. Herman, Sarosh R. Irani, Daniel H. Lachance, Maria A. Willrich, Sean Pittock, John R. Mills, Anastasia Zekeridou   +11 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Development of compact lattice optical clocks towards future space clocks

, 2013
The use of ultra-precise optical clocks in space will allow for a range of new applications in the fields of fundamental physics (tests of Einstein's theory of General Relativity, time and frequency metrology by means of the comparison of distant ...
S. Schiller, G. M. Tino, Vogt, S., Y. Ovchinnikov, E. Rasel, Schiller, S., Q. Chen, S. Bize, I. Ernsting, D. Calonico, Franzen, T., Barwood, G., R. Holzwarth, Schioppo, M., Kaenders, W., Rasel, E., Nevsky, A., Lisdat, Ch, Abou-Jaoudeh, C., Poli, N., Y. Singh, J. Stuhler, Chen, Q., W. Kaenders, Ovchinnikov, Y., A. Kulosa, T. Franzen, S. Alighanbari, Sterr, U., S. Vogt, Gorlitz, A., Alighanbari, S., Ernsting, I., A. Nevsky, A. Gorlitz, Levi, F., Bize, S., C. Abou-Jaoudeh, N. Poli, P. Gill, Holzwarth, R., Mura, G., M. Schioppo, U. Sterr, Falke, S., Kulosa, A., Calonico, D., F. Levi, Stuhler, J., Bongs, K.; id_orcid, S. Falke, Gill, P., Ch. Lisdat, G. Barwood, Tino, G. M., Singh, Y.; id_orcid, G. Mura, K. Bongs   +57 more
core   +1 more source

Advancing Optical Lattice Clocks: From Cryogenic Silicon Cavities to Superexchange Interactions [PDF]

Optical lattice clocks provide a testbed for a wide range of science spanning from studies of fundamental physics to probing novel many-body states. To improve clock precision, probing increasingly many atoms for the longest coherence times affordable is
Milner, William Richard
core   +6 more sources

Colloquium: Physics of optical lattice clocks [PDF]

Reviews of Modern Physics, 2011
18 pages, 15 ...
Derevianko, Andrei, Katori, Hidetoshi
openaire   +2 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source