584 citations · 635 across the 4 of their papers we have counts for
6 papers
Einstein's basement - A kinematic sector complementing special relativity
Fritz Riehle, Sebastian Ulbricht
We revisit the concept of particles as it is used in special relativity. The presented model treats the energy-momentum relation of relativistic particles as the upper branch of a…
1.5 m lasers with sub 10 mHz linewidth
D. G. Matei, T. Legero, S. Häfner +8
We report on two ultrastable lasers each stabilized to independent silicon Fabry-Pérot cavities operated at 124 K. The fractional frequency instability of each laser is completely…
Atomic clocks with suppressed blackbody radiation shift
V. I. Yudin, A. V. Taichenachev, M. V. Okhapkin +6
We develop a nonstandard concept of atomic clocks where the blackbody radiation shift (BBRS) and its temperature fluctuations can be dramatically suppressed (by one to three orders…
Optical Clocks in Space
S. Schiller, A. Goerlitz, A. Nevsky +18
The performance of optical clocks has strongly progressed in recent years, and accuracies and instabilities of 1 part in 10^18 are expected in the near future. The operation of opt…
Doppler cooling and trapping on forbidden transitions
T. Binnewies, G. Wilpers, U. Sterr +5
Ultracold atoms at temperatures close to the recoil limit have been achieved by extending Doppler cooling to forbidden transitions. A cloud of ^40Ca atoms has been cooled and trapp…
Phase-coherent frequency measurement of the Ca intercombination line at 657 nm with a Kerr-lens mode-locked femtosecond laser
J. Stenger, T. Binnewies, G. Wilpers +5
The frequency of the Calcium ^3P_1--^1S_0 intercombination line at 657 nm is phase-coherently measured in terms of the output of a primary cesium frequency standard using an optica…