线性囚禁离子晶体中相变的幂律标度观测

Observation of power-Law scaling for phase transitions in linear trapped ion crystals.

作者信息

Enzer DG, Schauer MM, Gomez JJ, Gulley MS, Holzscheiter MH, Kwiat PG, Lamoreaux SK, Peterson CG, Sandberg VD, Tupa D, White AG, Hughes RJ, James DF

机构信息

Physics Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

出版信息

Phys Rev Lett. 2000 Sep 18;85(12):2466-9. doi: 10.1103/PhysRevLett.85.2466.

DOI:10.1103/PhysRevLett.85.2466

PMID:10978083

Abstract

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.

摘要

我们报告了关于离子晶体中线性到之字形相变的临界各向异性参数与离子数之间幂律关系的实验证实。我们的实验使用了限制在线性射频阱中的激光冷却钙离子。对多达十个离子的测量结果与理论和数值预测高度吻合。文中还讨论了对离子阱量子计算机中数据寄存器大小上限的影响。