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Phys Rev Lett
; 85(12): 2466-9, 2000 Sep 18.
Artigo
em Inglês
| MEDLINE
| ID: mdl-10978083
RESUMO
We report an experimental confirmation of the power-law relationship between the critical anisotropy parameter and ion number for the linear-to-zigzag phase transition in an ionic crystal. Our experiment uses laser cooled calcium ions confined in a linear radio-frequency trap. Measurements for up to ten ions are in good agreement with theoretical and numeric predictions. Implications on an upper limit to the size of data registers in ion trap quantum computers are discussed.
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