David Kirkpatrick

March 27, 2008

Atomic property of carbon nanotubes affects quantum computing

Filed under: Science, Technology — Tags: , , , , — David Kirkpatrick @ 6:10 pm

Electrons in carbon nanotubes have intertwined spins and orbits and this information has an effect on quantum computing.

From KurzweilAI.net:

Electron spin and orbits in carbon nanotubes are coupled
PhysOrg.com, Mar. 26, 2008Cornell physicists have found that the spin of an electron in a carbonnanotube is coupled — that is, interacts with — the electron‘s orbit.

The finding means researchers will have to change the way they read out or change spin in using nanotubes in quantum computing, but offers a new way to manipulate the spin, by manipulating the orbit.

Until now, physicists believed that the four possible states of an electron in a carbonnanotube–spin up or down, and orbit clockwise or counterclockwise–must be equivalent.
Read Original Article>>

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