Look up aspect in Wiktionary, the free dictionary.

Aspect may be:

• Aspect (computer programming), a feature that is linked to many parts of a program, but which is not necessarily the primary function of the program.
• Grammatical aspect, in linguistics, a component of the conjugation of a verb, having to do with the internal temporal flow of an event
• Lexical aspect, in linguistics, a distinction among different kinds of verb according to their relation to time
• Astrological aspect, the relative angle between two heavenly bodies
• Aspect (geography), the direction in which a slope faces
• Aspect (trade union), a trade union in the United Kingdom
• An anatomic term, see Anatomical terms of location
• Aspect (Dungeons & Dragons), aspect refers to a figure which is the representation of a god

Companies:

• Aspect Co., a Japanese video game company
• Warner Aspect, an imprint of the publishing company Warner Books, focusing on works of science fiction

People:

• Alain Aspect, a French physicist

Aspect may also refer to:

• In railway signalling, the aspect is the number of lights on a signal, and their state. For example, the standard three-light traffic signal is a three-aspect signal.

See also[link]

• Aspect ratio

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

Alain Aspect
Alain Aspect on a visit to Tel Aviv University
Born	(1947-06-15) 15 June 1947 (age 65) Agen, France
Residence	France
Nationality	French
Fields	Physicist
Institutions	Institut d'Optique École Polytechnique Centre national de la recherche scientifique
Alma mater	École Normale Supérieure de Cachan (E.N.S., 1965)
Known for	Bell test experiments

Alain Aspect (French pronunciation:  [aspɛ] (help·info); born 15 June 1947 in Agen) is a French physicist noted for his experimental work on quantum entanglement.

Biography[link]

Aspect is a graduate of the École Normale Supérieure de Cachan (ENS Cachan). He passed the 'agrégation' in physics in 1969 and received his master's degree from Université d'Orsay. He then did his national service, teaching for three years in Cameroon.

In the early 1980s, while working on his PhD thesis^[1] from the lesser academic rank of lecturer, he performed the elusive "Bell test experiments" that showed that Albert Einstein, Boris Podolsky and Nathan Rosen's reductio ad absurdum of quantum mechanics, namely that it implied 'ghostly action at a distance', did in fact appear to be realised when two particles were separated by an arbitrarily large distance (see EPR paradox). A correlation between their wave functions remained, as they were once part of the same wave-function that was not disturbed before one of the child particles was measured.

If quantum theory is correct, the determination of an axis direction for the polarization measurement of one photon, forcing the wave function to 'collapse' onto that axis, will influence the measurement of its twin. This influence occurs despite any experimenters not knowing which axes have been chosen by their distant colleagues, and at distances that disallow any communication between the two photons, even at the speed of light.

Aspect's experiments were considered to provide overwhelming support to the thesis that Bell's inequalities are violated in its CHSH version. However, his results were not completely conclusive, since there were so-called loopholes that allowed for alternative explanations that comply with local realism. See local hidden variable theory.

Stated more simply, the experiment provides strong evidence that a quantum event at one location can affect an event at another location without any obvious mechanism for communication between the two locations. This has been called "spooky action at a distance" by Einstein (who doubted the physical reality of this effect). However, these experiments do not allow faster-than-light communication, as the events themselves appear to be inherently random.

After his works on Bell's inequalites, he turned toward studies of laser cooling of neutral atoms and is now mostly involved in Bose-Einstein condensates related experiments.

Aspect was deputy director of the French "grande école" SupOptique until 1994. He is a member of the French Academy of Sciences and French Academy of Technologies, and professor at the École Polytechnique. In 2005 he was awarded the gold medal of the Centre national de la recherche scientifique, where he is currently Research Director. The 2010 Wolf Prize in physics was awarded to Aspect, Anton Zeilinger and John Clauser.

Selected bibliography[link]

• Experimental Realization of Einstein-Podolsky-Rosen-Bohm Gedankenexperiment: A New Violation of Bell's Inequalities, A. Aspect, P. Grangier, and G. Roger, Physical Review Letters, Vol. 49, Iss. 2, pp. 91–94 (1982) doi:10.1103/PhysRevLett.49.91
• Experimental Test of Bell's Inequalities Using Time-Varying Analyzers, A. Aspect, J. Dalibard and G. Roger, Physical Review Letters, Vol. 49, Iss. 25, pp. 1804–1807 (1982) doi:10.1103/PhysRevLett.49.1804
• To be or not to be local, A. Aspect, Nature, Vol. 446, pp. 866–867 (2007)

See also[link]

Wikiquote has a collection of quotations related to: Alain Aspect

• Abner Shimony
• EPR paradox

References[link]

External links[link]

• Aspect's homepage
• Atom Optics group, Laboratoire Charles Fabry, Institut d'Optique
• Biography at CNRS
• http://www.lcf.institutoptique.fr/Groupes-de-recherche/Optique-atomique/Membres/Membres-permanents/Alain-Aspect
• http://www.academie-sciences.fr/academie/membre/Aspect_Alain.htm
• Lévy Statistics and Laser Cooling: http://www.cambridge.org/us/knowledge/isbn/item1169242/?site_locale=en_US
• Speakable and Unspeakable in Quantum Mechanics: http://www.cambridge.org/us/knowledge/isbn/item1149699/?site_locale=en_US
• Introduction to Quantum Optics: http://www.cambridge.org/us/knowledge/isbn/item2712310/Introduction%20to%20Quantum%20Optics/?site_locale=en_US

This biographical article needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately, especially if potentially libelous or harmful. (March 2011)

Shane Bunting (born October 21, 1975), better known by stage name Mad Child, is a Canadian rapper. He is part of the Vancouver-based hip hop group Swollen Members. In 2009, he released his solo EP entitled The Mad Child EP. Mad Child can be recognized by his high, nasal voice. His raps are generally dark and aggressive.

In 2001, he was named a member of the legendary 'Rock Steady Crew'.

In early 2011 it was reported that Mad Child was banned from entering the United States, evidently due to alleged ties with the Hells Angels biker gang. Bunting said that he was detained at an American airport for approximately 8 hours before being told he could not enter the country, and is currently working with a lawyer in San Diego, California to rectify the situation. [1]^[1]

In August 2011, Mad Child returned to his battle roots by taking part in a rap battle for King of the Dot. He went up against Dirtbag Dan and won on a 3-2 decision.^[2]

Discography[link]

Solo releases[link]

• Jam Like a Tec (1994)
• Claustrophobic EP (1995)
• The Mad Child EP (2009)
• King Of Pain EP (2011)
• Banned From America EP (2011)
• M.A.D.E. (Misguided Angel Destroys Everything) (2011)^[3]
• Little Monster EP (2012)
• Dope Sick (2012)^[4]

With Swollen Members[link]

• Balance (1999)
• Bad Dreams (2001)
• Monsters In the Closet (2002)
• Heavy (2003)
• Black Magic (2006)
• Armed to the Teeth (2009)
• Dagger Mouth (2011)
• 1997 (2011)
• Monsters In the Closet: Part 2 (2011)
• Beautiful Death Machine (2012)

Collaborations[link]

• Young Girls EP (1993) with Flipout
• What The Hell (1995) with Flipout
• Edgecrusher (1998) with Fear Factory
• Perfect Strangers (1999) with Moka Only

References[link]

External links[link]

• Mad Child's Myspace
• MadChild's Twitter