Physicists are continuously advancing the control they can exert over matter. A German-Spanish team working with researchers from the Max Planck Institute for Nuclear Physics in Heidelberg has now ...

Light is one of the most powerful tools scientists have for probing matter. By interacting with electrons, light reveals how ...

A measurement of the extremely weak magnetic interaction between two single electrons has been carried out by an international team of physicists. Using experimental techniques first developed for ...

Introduction At the heart of chemical bonding are electrons. When atoms approach each other, the quantum states of their ...

Why don't objects pass through each other?Let's place a hand on the desk in front of us.The hand does not pass through the ...

Photovoltaics, the conversion of light to electricity, is a key technology for sustainable energy. Since the days of Max Planck and Albert Einstein, we know that light as well as electricity are ...

Two-dimensional materials are substances with a thickness of a few nanometres or less. Electrons in these materials are free to move in the two-dimensional plane, but their restricted motion in the ...

The absorption of a single photon can cause the excitation of more than one electron, but the mechanism of this 'multi-exciton generation' process is elusive. Now, calculations on pentacene show that ...

Quantum theory, despite being one of the most successful scientific theories in history, throws up some bizarre ideas: quantum spin, the uncertainty principle, wave/particle duality, quantum ...

Standoffish electrons typically keep one another at arm’s length, repelling their neighbors. But surprisingly, under certain circumstances, this repulsion can cause pairs of electrons to soften their ...