Nanoscale heat engine exceeds standard efficiency limit
Quantum dot LED approaches theoretical maximum efficiency
On a clear day: Noise-induced quantum coherence increases photosynthetic yield
Two stopped light pulses interact with each other
Synergistic effect discovered in layered quantum dot solar cells
Quantum dots with built-in charge boost solar cell efficiency by 50%
Atoms at negative absolute temperature: The hottest systems in the world
(Phys.org)—In cold regions on earth, negative temperatures on the Fahrenheit or Celsius scale can often occur in winter; in physics, however, they were so far impossible. On the absolute temperature scale ...
Physicists induce high-temperature superconductivity in semiconductor with Scotch tape
An international team led by University of Toronto physicists has developed a simple new technique using Scotch poster tape that has enabled them to induce high-temperature superconductivity in a semiconductor ...
Single-atom transistor is 'perfect'
In a remarkable feat of micro-engineering, UNSW physicists have created a working transistor consisting of a single atom placed precisely in a silicon crystal.
Long-distance quantum communication gets closer as physicists increase light storage efficiency by an order of magnitude
Lab sets a new record for creating heralded photons
(Phys.org) —Entanglement, by general consensus of physicists, is the weirdest part of quantum science. To say that two particles, A and B, are entangled means that they are actually two parts of an inseparable ...
New solar-cell design based on dots and wires
Using exotic particles called quantum dots as the basis for a photovoltaic cell is not a new idea, but attempts to make such devices have not yet achieved sufficiently high efficiency in converting sunlight ...
One in, two out: Simulating more efficient solar cells
(Phys.org)—Using an exotic form of silicon could substantially improve the efficiency of solar cells, according to computer simulations by researchers at the University of California, Davis, and in Hungary. ...
Ultrafast technique unlocks design principles of quantum biology
University of Chicago researchers have created a synthetic compound that mimics the complex quantum dynamics observed in photosynthesis and may enable fundamentally new routes to creating solar-energy technologies. ...