Temperature-driven structural phase transition for trapped ions and a proposal for its experimental detection |
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Authors: | Gong Zhe-Xuan Lin G-D Duan L-M |
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Institution: | Department of Physics and MCTP, University of Michigan, Ann Arbor, Michigan 48109, USA. |
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Abstract: | A Wigner crystal formed with trapped ions can undergo a structural phase transition, which is determined only by the mechanical conditions on a classical level. Instead of this classical result, we show that through consideration of quantum and thermal fluctuation, a structural phase transition can be driven solely by a change in the system's temperature. We determine a finite-temperature phase diagram for trapped ions using the renormalization group method and the path integral formalism, and propose an experimental scheme to observe the predicted temperature-driven structural phase transition, which is well within the reach of the current ion trap technology. |
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