Results 21 to 30 of about 526 (247)
Terahertz Vibrational Molecular Clock with Systematic Uncertainty at the 10^{-14} Level
Physical Review X, 2023 Neutral quantum absorbers in optical lattices have emerged as a leading platform for achieving clocks with exquisite spectroscopic resolution. However, the studies of these clocks and their systematic shifts have so far been limited to atoms.
K. H. Leung +6 more
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Frequency Standards and Metrology, 2009 At the previous Symposium on Frequency Standards and Metrology, H. Katori proposed using IS0 ---->3pO transitions in alkaline earth like atoms to make high performance optical clocks based on large numbers of neutral atoms tightly confined in an optical lattice.
N. D. Lemke +15 more
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Applied Sciences, 2020 The Zeeman shift plays an important role in the evaluation of optical lattice clocks since a strong bias magnetic field is applied for departing Zeeman sublevels and defining a quantization axis.
Xiaotong Lu +4 more
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New frequency ratios with a PHz-scale atomic clock
New Journal of Physics, 2016 Atomic clocks are a tour de force when it comes to rigorous tests of measurement. The ultimate validation of one’s careful assessments is to find agreement on a given parameter with a completely independent laboratory.
J J McFerran
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An Atomic-Array Optical Clock with Single-Atom Readout
Physical Review X, 2019 Currently, the most accurate and stable clocks use optical interrogation of either a single ion or an ensemble of neutral atoms confined in an optical lattice.
Ivaylo S. Madjarov +7 more
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Experimental determination of the E2-M1 polarizability of the strontium clock transition
Physical Review Research, 2023 To operate an optical lattice clock at a fractional uncertainty below 10^{−17}, one must typically consider not only electric-dipole (E1) interaction between an atom and the lattice light field when characterizing the resulting lattice light shift of the
S. Dörscher +3 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
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A strontium lattice clock with inaccuracy and its frequency
New Journal of Physics, 2014 We have measured the absolute frequency of the optical lattice clock based on ^87 Sr at PTB with an uncertainty of $3.9\times {{10}^{-16}}$ using two caesium fountain clocks.
Stephan Falke +12 more
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Microscale whispering-gallery-mode light sources with lattice-confined atoms
Scientific Reports, 2021 Microlasers, relying on the strong coupling between active particles and optical microcavity, exhibit fundamental differences from conventional lasers, such as multi-threshold/thresholdless behavior and nonclassical photon emission.
Deshui Yu, Frank Vollmer
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A mercury optical lattice clock at LNE-SYRTE
Journal of Physics: Conference Series, 2016 We describe the development of an optical lattice clock based on mercury and the results obtained since the 7 th SFSM. We briefly present a new solution for the cooling laser system and an improved lattice trap that allows us to interrogate a few thousand atoms in parallel.
de Sarlo, L. +3 more
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