News tagged with quantum effect

Study supports role of quantum effects in photosynthesis

(PhysOrg.com) -- Until a few years ago, photosynthesis seemed to be a straightforward and well-understood process in which plants and other organisms use sunlight to convert carbon dioxide and water into sugars, ...

Physics / General Physics

created Jan 25, 2012 | popularity 4.9 / 5 (13) | comments 7 | with audio podcast feature

Encouraging quantum dots to emit photons

(PhysOrg.com) -- One of the fields of great interest to scientists and researchers is that of using the quantum world to enhance various aspects of our lives. Advances in quantum cryptography make headlines, and scientists ...

Nanotechnology / Nanophysics

created Aug 05, 2010 | popularity 5 / 5 (18) | comments 0 | with audio podcast feature

Physicists investigate the role of quantum entanglement in the magnetic compasses of animals

(PhysOrg.com) -- Many animals possess some kind of magnetic sense, allowing them to navigate by using a magnetic field. The ability to detect a magnetic field, called magnetoreception, has been observed in ...

Physics / Quantum Physics

created Jun 21, 2010 | popularity 4.4 / 5 (27) | comments 18 | with audio podcast feature

Physicists build quantum amplifier with single artificial atom

(PhysOrg.com) -- By demonstrating how a single artificial atom can be used to amplify electromagnetic waves, physicists from Japan are opening up new possibilities for quantum amplifiers, which can be used ...

Physics / Quantum Physics

created May 25, 2010 | popularity 4.4 / 5 (23) | comments 3 | with audio podcast feature

Artificial magnetic fields for light could illuminate correlated quantum systems

(PhysOrg.com) -- In general, the field of many-body physics involves the interactions and collective behavior of large numbers of particles. Scientists have made significant progress in exploring this field, ...

Physics / Quantum Physics

created Feb 03, 2010 | popularity 4.7 / 5 (19) | comments 1 | with audio podcast feature

Physicists Explain How Human Eyes Can Detect Quantum Effects

(PhysOrg.com) -- By greatly amplifying one photon from an entangled photon pair, physicists have theoretically shown that human eyes can be used as detectors to observe quantum effects. Usually, detecting ...

Physics / Quantum Physics

created Sep 29, 2009 | popularity 4.2 / 5 (48) | comments 19 feature

Observing the Quantum Hall Effect in 'Real' Space

(PhysOrg.com) -- When water transforms into steam, or magnetized iron changes to demagnetized iron, Katsushi Hashimoto explains to PhysOrg.com, a phase transition is taking place: “Classical phase transitions…often share ...

Physics / General Physics

created Jan 12, 2009 | popularity 4.2 / 5 (14) | comments 5 feature

Quantum physics first: Researchers observe single photons in two-slit interferometer experiment

Quantum mechanics is famous for saying that a tree falling in a forest when there's no one there doesn't make a sound. Quantum mechanics also says that if anyone is listening, it interferes with and changes the tree. And ...

Physics / Quantum Physics

created Jun 02, 2011 | popularity 4.9 / 5 (23) | comments 44 | with audio podcast

Charge it: Neutral atoms made to act like electrically charged particles

(PhysOrg.com) -- Completing the story they started by creating synthetic magnetic fields, scientists from the Joint Quantum Institute (JQI), a collaboration of the National Institute of Standards and Technology a ...

Physics / General Physics

created Mar 31, 2011 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Quantum engineers remove roadblock in developing next-generation technologies

(PhysOrg.com) -- An international team has removed a major obstacle to engineer quantum systems that will play a key role in the computers, communication networks, and even biomedical devices of the future.

Physics / Quantum Physics

created Mar 08, 2011 | popularity 4.9 / 5 (21) | comments 6 | with audio podcast

Quantum physicists turn waste heat into power

(PhysOrg.com) -- University of Arizona physicists have discovered a new way of harvesting waste heat and turning it into electrical power. Taking advantage of quantum effects, the technology holds great promise ...

Nanotechnology / Nanophysics

created Sep 24, 2010 | popularity 4.7 / 5 (38) | comments 35 | with audio podcast

Research gives insight into using graphene in electronics

(PhysOrg.com) -- New findings from the laboratory of University of Illinois researcher Joe Lyding are providing valuable insight into graphene, a single two-dimensional layer of graphite with numerous electronic and mechanical ...

Nanotechnology / Nanomaterials

created Sep 22, 2010 | popularity 4.7 / 5 (3) | comments 2 | with audio podcast

Good vibrations: New atom-scale products on horizon

The generation of an electric field by the compression and expansion of solid materials is known as the piezoelectric effect, and it has a wide range of applications ranging from everyday items such as watches, ...

Nanotechnology / Nanophysics

created Aug 23, 2010 | popularity 4.5 / 5 (15) | comments 8 | with audio podcast

Graphene shows strange new behavior better suited for electronic devices

Regarded as a possible replacement for silicon-based semiconductors, graphene, a sheet of pure carbon, has been discovered to have an uncommon and astonishing property that might make it better matched for ...

Nanotechnology / Nanomaterials

created Jul 29, 2010 | popularity 4.7 / 5 (23) | comments 3 | with audio podcast

European researchers make breakthrough in developing super-material graphene

(PhysOrg.com) -- A collaborative research project has brought the world a step closer to producing a new material on which future nanotechnology could be based. Researchers across Europe, including the UK's ...

Nanotechnology / Nanomaterials

created Jan 19, 2010 | popularity 5 / 5 (23) | comments 2 | with audio podcast