科研之友
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摘要
While the microscopic origins of radio-frequency (rf) heating of simultaneously stored, charged particles in a Paul trap are not yet understood in detail, a universal heating curve [J. D. Tarnas, Y. S. Nam, and R. Blumel, Phys. Rev. A 88, 041401 (2013)] was recently discovered that collapses scaled rf heating data onto a single universal curve. Based on a simple analytical mean-field theory, we derive an analytical expression for the universal heating curve, which is in excellent agreement with numerical data. We find that for spherical clouds the universal curve depends only on a single scaling parameter, lambda = [q(N - 1)](2/3) /T, where N is the number of trapped particles, q is the Paul-trap control parameter, and T is the temperature.
- 出版日期2014-7-2
