Articles from Science Daily Physics News

Graphene sets a new record on squeezing light to one atom

Researchers reach the ultimate level of light confinement -- the space of one atom. This will pave the way to ultra-small optical switches, detectors and sensors.

Atoms may hum a tune from grand cosmic symphony

Researchers playing with a cloud of ultracold atoms uncovered behavior that bears a striking resemblance to the universe in microcosm. Their work forges new connections between atomic physics and the sudden expansion of the early universe.

Simulation of the AsqJ enzyme opens up new options for pharmaceutical chemistry

Practically all biochemical processes involve enzymes that accelerate chemical reactions. A research team has now for the first time deciphered the molecular mechanism of the enzyme AsqJ. Their findings might open up new options in the production of pharmaceutically active molecules.

Understanding Mercury's magnetic tail

Theoretical physicists used simulations to explain the unusual readings collected in 2009 by the Mercury Surface, Space Environment, Geochemistry, and Ranging mission. The origin of energetic electrons detected in Mercury's magnetic tail has puzzled scientists. This new study provides a possible solution to how these energetic electrons form.

Scientists make counter-intuitive observations in hybrid quantum systems

Scientist have found that the cooling of quantum systems coupled to a common reservoir can lead to counter-intuitive behavior, where one of the quantum systems actually heats up.

New type of 'opal' formed by common seaweed

Scientists have discovered a completely new type of opal formed by a common seaweed which harnesses natural technology by self-assembling a nanostructure of oil droplets to control how light reflects from its cells to display a shimmering array of colours that until now, has only been seen in the gem stone.

From insulator to conductor in a flash

A clever combination of novel technologies enables us to study promising materials for the electronics of tomorrow. Using short laser pulses, a research team have now shed light on the extremely rapid processes taking place within novel materials.

A new Bose-Einstein condensate

Researchers have created a Bose-Einstein condensate of light coupled with metal electrons, so-called surface plasmon polaritons.

Quantum shift shows itself in coupled light and matter

Researchers observe and measure a Bloch-Siegert shift in strongly coupled light and matter in a vacuum. The project could aid in the development of quantum computers.

When nuclei catch up with electrons

In an attosecond study of the H2 molecule physicists found that for light atomic nuclei -- as contained in most organic and biological molecules -- the correlation between electronic and nuclear motions cannot be ignored.