Results 51 to 60 of about 2,598,112 (267)

A noise-immune cavity-assisted non-destructive detection for an optical lattice clock in the quantum regime

New Journal of Physics, 2017
We present and implement a non-destructive detection scheme for the transition probability readout of an optical lattice clock. The scheme relies on a differential heterodyne measurement of the dispersive properties of lattice-trapped atoms enhanced by a
G Vallet, E Bookjans, U Eismann, S Bilicki, R Le Targat, J Lodewyck   +5 more
doaj   +1 more source

Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments

Applied Sciences, 2020
Obtaining ultracold alkaline earth(-like) atoms in space encounters the problem of performing narrow-line laser cooling in microgravity environments ( μ -gEs).
Jie Ren, Hui Liu, Xiaotong Lu, Hong Chang   +3 more
doaj   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

Advanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba, Sang‐Hyeok Lee, Christina Gasper, Martina Freund, Sandra Korte‐Kerzel, Ulrich Kerzel   +5 more
wiley   +1 more source

Progress on the optical lattice clock

Comptes Rendus. Physique, 2015
Optical lattice clocks have made significant leaps forward in recent years, demonstrating the ability to measure time/frequency at unprecedented levels. Here we highlight this progress, with a particular focus on research efforts at NIST and JILA. We discuss advances in frequency instability and the characterization of key systematic effects, with a ...
Andrew D. Ludlow, Jun Ye
openaire   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

INO: Interplanetary network of optical lattice clocks [PDF]

International Journal of Modern Physics D, 2019
The new technique of measuring frequency by optical lattice clocks now approaches to the relative precision of [Formula: see text]. We propose to place such precise clocks in space and to use Doppler tracking method for detecting low-frequency gravitational wave below 1[Formula: see text]Hz. Our idea is to locate three spacecrafts at one A.U. distance (
Toshikazu Ebisuzaki, Hidetoshi Katori, Jun’ichiro Makino, Atsushi Noda, Hisaaki Shinkai, Toru Tamagawa   +5 more
openaire   +2 more sources

The PRIMA Thesaurus for Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa, Alexey Boubnov, Dario De Angelis, Catriona Eschke, Maximilian Kabbe, Felix Kraus, Mirco Panighel, Richard Thelen, Davide Valentinis   +8 more
wiley   +1 more source

Strongly correlated ultracold bosons in an optical lattice [PDF]

, 2012
In this thesis, we have investigated strongly correlated bosonic gases in an optical lattice, mostly based on a bosonic version of dynamical mean field theory and its real-space extension. Emphasis is put on possible novel quantum phenomena of these many-
Li, Yongqiang
core  

Frequency stability of optical lattice clocks

, 2010
In this paper, we review several aspects of the frequency stability of optical lattice clocks. We describe a new ultra-stable cavity design with reduced thermal noise and record frequency stability (below 10(-15)), as well as a non-destructive detection ...
Lecallier, Arnaud, Lodewyck, Jérôme, ARNAUD LECALLIER, Philip G Westergaard, Luca Lorini, PHILIP G. WESTERGAARD, LORINI, LUCA, JÉROME LODEWYCK, Westergaard, Philip G., PIERRE LEMONDE, Lemonde, Pierre   +10 more
core   +1 more source

Enhancing Optical Lattice Clock Coherence Times with Erasure Conversion

PRX Quantum
Increasing coherent interrogation times is central to advancing the precision of optical clocks. Synchronous differential optical clock comparisons have now demonstrated atomic coherence times that far exceed the coherence time of the clock laser.
Shuo Ma, Jonathan Dolde, Xin Zheng, Dhruva Ganapathy, Alexander Shtov, Jenny Chen, Anke Stöltzel, Bennett J. Christensen, Shimon Kolkowitz   +8 more
doaj   +1 more source