Atomic clock comparison via data highways

(Phys.org) -- Optical atomic clocks measure time with unprecedented accuracy. However, it is the ability to compare clocks with one another that makes them applicable for high-precision tests in fundamental theory, from cosmology ...

Is graphene the best quantum resistance standard?

New research from NPL's Quantum Detection Group presents the most precise measurements of the quantum Hall effect ever made, using the two-dimensional material graphene.

First app from NPL to help researchers working in the lab

The UK's National Physical Laboratory (NPL) has released its first app for iOS devices such as iPhones and iPads. It will provide researchers with easy and up-to-date access to the values for all the physical constants.

Goal: developing the best atomic clock in the world

They are masters at working with light: the scientists at the newly founded QUEST Institute at the Physikalisch-Technische Bundesanstalt (PTB), Braunschweig. And they want to work on some of the most exciting questions relating ...

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