Schrödinger's cat with 20 qubits

Dead or alive, left-spinning or right-spinning—in the quantum world particles such as the famous analogy of Schrödinger's cat can be all these things at the same time. An international team, including researchers from ...

Can Switzerland succeed without fossil fuels?

If we want to get rid of fossil fuels nationwide, there is a lot to do. It will be a generation project, that much is clear. Empa researchers Martin Rüdisüli, Sinan Teske and Urs Elber have now calculated how long and steep ...

Experiment reverses the direction of heat flow

Heat flows from hot to cold objects. When a hot and a cold body are in thermal contact, they exchange heat energy until they reach thermal equilibrium, with the hot body cooling down and the cold body warming up. This is ...

Dark matter experiment finds no evidence of axions

Physicists from MIT and elsewhere have performed the first run of a new experiment to detect axions—hypothetical particles that are predicted to be among the lightest particles in the universe. If they exist, axions would ...

Novel insights into soil biodiversity, Earth's global engine

A Virginia Tech professor was part of an international team of researchers that discovered new advances about the major ecological patterns driving the changes in soil biodiversity that occur over millions of years.

Searching for errors in the quantum world

The theory of quantum mechanics is well supported by experiments. Now, however, a thought experiment by ETH physicists yields unexpected contradictions. These findings raise some fundamental questions—and they're polarising ...

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