News tagged with quantum energy

Uncovering quantum secret in photosynthesis

The efficient conversion of sunlight into useful energy is one of the challenges which stand in the way of meeting the world's increasing energy demand in a clean, sustainable way without relying on fossil ...

Jun 20, 2013
4.9 / 5 (30) 5 | with audio podcast

Cool electron acceleration

Physicists from the Max-Planck-Institute of Quantum Optics produced electron pulses from a laser accelerator whose individual particles all have nearly the same, tuneable energy.

Jun 04, 2013
5 / 5 (5) 0 | with audio podcast

Coupled particles cross energy wall

For the first time, a new kind of so-called Klein tunnelling-representing the quantum equivalent of crossing an energy wall- has been presented in a model of two interacting particles. This work by Stefano ...

May 29, 2013
3.5 / 5 (4) 1 | with audio podcast

Elucidating energy shifts in optical tweezers

A small piece of paper sticks to an electrically charged plastic ruler. The principle of this simple classroom physics experiment is applied at the microscopic scale by so-called optical tweezers to get the likes of polystyrene ...

May 08, 2013
5 / 5 (1) 0

Team demonstrates quantum dots that assemble themselves

(Phys.org) —Scientists from the U.S. Department of Energy's National Renewable Energy Laboratory and other labs have demonstrated a process whereby quantum dots can self-assemble at optimal locations in nanowires, a breakthrough ...

Apr 16, 2013
5 / 5 (5) 0 | with audio podcast