We review in detail a number of approaches that have been adopted to try and explain the
remarkable observation of our accelerating universe. In particular we discuss the arguments …

The status of experimental tests of general relativity and of theoretical frameworks for
analyzing them is reviewed and updated. Einstein's equivalence principle (EEP) is well …

Fundamental constants are a cornerstone of our physical laws. Any constant varying in
space and/or time would reflect the existence of an almost massless field that couples to …

The chopped random basis (CRAB) ansatz for quantum optimal control has been proven to
be a versatile tool to enable quantum technology applications such as quantum computing …

We report the incrementally staged design, synthesis, characterization, and operation of a
molecular machine that behaves like a nanoscale elevator. The operation of this device …

The gravitational couplings of matter are studied in the presence of Lorentz and CPT
violation. At leading order in the coefficients for Lorentz violation, the relativistic quantum …

We give an overview of the work done with the Laboratoire National de Metrologie et
d'Essais-Systemes de Reference Temps-Espace (LNE-SYRTE) fountain ensemble during …

Three distinct techniques exist for distributing an ultrastable frequency reference over optical
fibers. For the distribution of a microwave frequency reference, an amplitude-modulated …

Atomic fountain clocks Page 1 Metrologia Atomic fountain clocks To cite this article: R Wynands
and S Weyers 2005 Metrologia 42 S64 View the article online for updates and enhancements …

The unprecedented precision of atom interferometry will soon lead to laboratory tests of
general relativity to levels that will rival or exceed those reached by astrophysical …