Results 11 to 20 of about 8,346 (279)
Magic Wavelengths for Optical-Lattice Based Cs and Rb Active Clocks
Atoms, 2020 Active clocks could provide better stabilities during initial stages of measurements over passive clocks, in which stabilities become saturated only after long-term measurements.
Sukhjit Singh +4 more
doaj +1 more source
Rydberg electrometry for optical lattice clocks [PDF]
Physical Review A, 2017 Electrometry is performed using Rydberg states to evaluate the quadratic Stark shift of the $5s^2$ $^1\textrm{S}_0-5s5p$ $^3\textrm{P}_0$ clock transition in strontium. By measuring the Stark shift of the highly excited $5s75d\;^1\textrm{D}_2$ state using electromagnetically induced transparency, we characterize the electric field with sufficient ...
Bowden, W. +5 more
openaire +3 more sources
A proof-of-concept model of compact and high-performance 87Sr optical lattice clock for space
AIP Advances, 2021 A compact and robust design of an optical lattice clock with high stability and accuracy is needed for the implementation of optical clocks operating on the space station.
Feng Guo +13 more
doaj +1 more source
Applied Sciences, 2022 Accurately manipulating quantum states is a fundamental strategy for improving the performance of quantum metrology, computing, and simulation. However, the quantum state is susceptible to dephasing due to the temperature and density of the atomic ...
Feng Guo +3 more
doaj +1 more source
PRX Quantum, 2022 We demonstrate a cavity-based solution to scale up experiments with ultracold atoms in optical lattices by an order of magnitude over state-of-the-art free-space lattices.
A. J. Park +6 more
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Demonstration of a time scale with the 87Sr optical lattice clock at NTSC
AIP Advances, 2023 Optical clocks have been applied to the generation of time scales since they provide superb uncertainty and instability in recent years. This paper presents the simulations about the impact of the optical clock’s operational strategies on the performance
Qinfang Xu +6 more
doaj +1 more source
Yb optical lattice clock at INRIM [PDF]
EFTF-2010 24th European Frequency and Time Forum, 2010 The Unit of Time in the International Systems of Units is realized at the relative frequency accuracy level of few parts in 10-16 by laser cooled Cesium fountains [1]; since 2003 INRIM has operated a laser cooled Cesium fountain with relative frequency accuracy at the level of 5×10-16 and has contributed with this frequency standard to the generation ...
CALONICO, DAVIDE +8 more
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Doubly Modulated Optical Lattice Clock: Interference and Topology [PDF]
Physical Review Letters, 2021 The quantum system under periodical modulation is the simplest path to understand the quantum non-equilibrium system, because it can be well described by the effective static Floquet Hamiltonian. Under the stroboscopic measurement, the initial phase is usually irrelevant.
Xiao-Tong Lu +7 more
openaire +3 more sources
Modeling light shifts in optical lattice clocks [PDF]
, 2019 We present an extended model for the lattice-induced light shifts of the clock frequency in optical lattice clocks, applicable to a wide range of operating conditions.
Bregolin, Filippo +4 more
core +2 more sources
Spin-squeezed atomic crystal [PDF]
, 2018 We propose a method to obtain a regular arrangement of two-level atoms in a three-dimensional optical lattice with unit filling, where all the atoms share internal state coherence and metrologically useful quantum correlations.
Kajtoch, Dariusz +2 more
core +1 more source