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Electron Temperature of Ultracold Plasmas

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Abstract

We study the evolution of ultracold plasmas by measuring the electron temperature. Shortly after plasma formation, competition between heating and cooling mechanisms drives the electron temperature to a value within a narrow range regardless of the initial energy imparted to the electrons. In agreement with theory predictions, plasmas exhibit values of the Coulomb coupling parameter $$\Gamma$$ less than 1.

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Journal
2004-02-09
physics/0402041
10.1103/PhysRevLett.92.253003