The linear-zigzag structural transition in cold ion chains

被引：3

作者：

Fishman, S. ^{[1
]}

Podolsky, D. ^{[1
]}

Shimshoni, E. ^{[2
]}

Silvi, P. ^{[3
]}

Calarco, T. ^{[3
]}

Montangero, S. ^{[3
]}

Morigi, G. ^{[4
]}

机构：

[1] Technion Israel Inst Technol, Phys Dept, IL-32000 Haifa, Israel

[2] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel

[3] Univ Ulm, Inst Quanteninformat Verarbeitung, D-89069 Ulm, Germany

[4] Univ Saarland, Theoret Phys, D-66123 Saarbrucken, Germany

来源：

ION TRAPS FOR TOMORROW'S APPLICATIONS | 2015年 / 189卷

关键词：

PHASE-TRANSITIONS; CRYSTALS;

D O I：

10.3254/978-1-61499-526-5-103

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A chain of singly charged particles confined by a harmonic potential exhibits a structural transition to a zigzag configuration when the radial potential frequency is at a critical value, which depends on the particle number. This structural change is a phase transition of second order, whose order parameter is the ions' transverse displacement from the chain axis. The transition is driven by transverse, short-wavelength vibrational modes. At ultra-low temperatures the linear-zigzag instability is a quantum phase transition of the same universality class of Ising models. [GRAPHICS] .

引用

页码：103 / 114

页数：12

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