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Hannover 2016 – scientific programme

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A: Fachverband Atomphysik

A 3: Atomic systems in external fields I

A 3.6: Talk

Monday, February 29, 2016, 12:30–12:45, f303

Progress toward a Global Network of Optical Magnetometers for Exotic research (GNOME) — •Hector Masia, Samer Afach, Arne Wickenbrock, and Dmitry Budker — Johannes Gutenberg-Universität Mainz

GNOME is a novel experimental scheme which enables the investigation of exotic spin couplings between nuclei and exotic fields generated by astrophysical sources by measuring spin precession. It consist of a network of geographically separated (>100 km), time synchronized and ultrasensitive ( ∼ fT/√Hz ) optical magnetometers, each placed in a magnetically shielded environment. This network and similar configurations enables the study of exotic global transient effects.

A specific example of such exotic fields are certain models of axion-like particles which form a network of light pseudoscalar fields permeating the universe.

Here we present an estimation of the experimentally accessible parameter space of such pseudoscalar fields that can be detected within GNOME along with first correlated measurements of long-time run signals will be discussed.

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