Friday 8 October 2010

Photosynthesis and Entanglement



Photosynthesis Thought to Exhibit Quantum Entanglement Phenomenon

Researchers from the Berkeley Center for Quantum Information and Computation, the Department of Chemistry at UC Berkeley, and the Lawrence Berkeley National Laboratory believe they have identified quantum entanglement events occurring in photosynthesis.

to download the paper:
http://arxiv.org/abs/0905.3787

macroscopic entanglement



The scientists´ scheme for detecting macroscopic entanglement: two laser pulses reflect off two identical oscillators, exciting a vibrational mode which generates optical sideband modes. After a beam splitter mixes the "Stokes" modes (red), detectors perform measurements which turn the optomechanical entanglement into mechanical entanglement. Credit: Stefano Pirandola, et al.
Building upon recent studies on optomechanical entanglement with lasers and mirrors, a group of scientists has developed a theoretical model using entanglement swapping in order to entangle two micromechanical oscillators. This ability could lead to advances in information processing, as well as other applications that use micromechanical resonators, such as electrometers, displacement detectors, and radio frequency signal processors, wrote scientists Stefano Pirandola et al. in a recent Physical Review Letters.

read more at http://www.physorg.com/news80896839.html



and about "...quantum entanglement in mechanical system" go to:
http://www.physorg.com/news163253992.html

Monday 4 October 2010

BBC Wonderland - Second Life



Here we can see an edited down version of the BBC program Wonderland and it's episode spotlighting virtual world romance in Second Life.