Blue Pigment Could Lead to Quantum Computers

Oct-29-13 A common blue pigment used in British five-pound notes could also help lead to the development of quantum computers.

The pigment, copper phthalocyanine (CuPc), contains electrons that can remain in superposition (the quantum effect of an electron existing in two states at once) for a long time. Scientists were able to process the dye into thin-film form, creating an inexpensive, organic semiconductor that gives the pigment an advantage over the other materials currently being studied. The CuPc pigment also absorbs visible light and can be easily modified both chemically and physically, allowing its magnetic and electrical properties to be controlled.

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[POPSCI.COM]
[UNIVERSITY COLLEGE LONDON]

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