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Measuring absolute frequencies beyond the GPS limit via long-haul optical frequency dissemination
C. Clivati, G. Cappellini, L. Livi +12
Global Positioning System (GPS) dissemination of frequency standards is ubiquitous at present, providing the most widespread time and frequency reference for the majority of indust…
Cold atoms: A field enabled by light
Leonardo Fallani, Anders Kastberg
Besides being a source of energy, light can also cool gases of atoms down to the lowest temperatures ever measured, where atomic motion almost stops. The research field of cold ato…
A compact ultranarrow high-power laser system for experiments with 578nm Ytterbium clock transition
Giacomo Cappellini, Pietro Lombardi, Marco Mancini +4
In this paper we present the realization of a compact, high-power laser system able to excite the Ytterbium clock transition at 578 nm. Starting from an external-cavity laser based…
Observation of chiral edge states with neutral fermions in synthetic Hall ribbons
M. Mancini, G. Pagano, G. Cappellini +8
Chiral edge states are a hallmark of quantum Hall physics. In electronic systems, they appear as a macroscopic consequence of the cyclotron orbits induced by a magnetic field, whic…