Observation of three-dimensional long-range order in small ion Coulomb crystals in an rf trap

被引：74

作者：

Mortensen, A ^{[1
]}

Nielsen, E ^{[1
]}

Matthey, T ^{[1
]}

Drewsen, M ^{[1
]}

机构：

[1] Univ Aarhus, Dept Phys & Astron, QUANTOP, Danish Natl Res Fdn Ctr Quantum Opt, DK-8000 Aarhus C, Denmark

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.96.103001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Three-dimensional long-range ordered structures in smaller and near-spherically symmetric Coulomb crystals of Ca-40(+) ions confined in a linear rf Paul trap have been observed when the number of ions exceeds similar to 1000 ions. This result is unexpected from ground state molecular dynamics (MD) simulations, but found to be in agreement with MD simulations of metastable ion configurations. Previously, three-dimensional long-range ordered structures have only been reported in Penning traps in systems of similar to 50000 ions or more.

引用

收藏

页码：1 / 4

页数：4

相关论文

共 29 条

[1] Dust Coulomb balls: Three-dimensional plasma crystals [J].

Arp, O ;

Block, D ;

Piel, A ;

Melzer, A .

PHYSICAL REVIEW LETTERS, 2004, 93 (16) :165004-1

[2] MULTIPLE-SHELL STRUCTURES OF LASER-COOLED MG-24(+) IONS IN A QUADRUPOLE STORAGE RING [J].

BIRKL, G ;

KASSNER, S ;

WALTHER, H .

NATURE, 1992, 357 (6376) :310-313

[3] PHASE-TRANSITIONS OF STORED LASER-COOLED IONS [J].

BLUMEL, R ;

CHEN, JM ;

PEIK, E ;

QUINT, W ;

SCHLEICH, W ;

SHEN, YR ;

WALTHER, H .

NATURE, 1988, 334 (6180) :309-313

[4] CHAOS AND ORDER OF LASER-COOLED IONS IN A PAUL TRAP [J].

BLUMEL, R ;

KAPPLER, C ;

QUINT, W ;

WALTHER, H .

PHYSICAL REVIEW A, 1989, 40 (02) :808-823

[5] Ion Coulomb crystals: a tool for studying ion processes [J].

Drewsen, M ;

Jensen, I ;

Lindballe, J ;

Nissen, N ;

Martinussen, R ;

Mortensen, A ;

Staanum, P ;

Voigt, D .

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY, 2003, 229 (1-2) :83-91

[6] Large ion crystals in a linear Paul trap [J].

Drewsen, M ;

Brodersen, C ;

Hornekaer, L ;

Hangst, JS ;

Schiffer, JP .

PHYSICAL REVIEW LETTERS, 1998, 81 (14) :2878-2881

[7] Harmonic linear Paul trap: Stability diagram and effective potentials [J].

Drewsen, M ;

Broner, A .

PHYSICAL REVIEW A, 2000, 62 (04) :4

[8] COMPUTER-SIMULATION OF ION CLOUDS IN A PENNING TRAP [J].

DUBIN, DHE ;

ONEIL, TM .

PHYSICAL REVIEW LETTERS, 1988, 60 (06) :511-514

[9] EVIDENCE FOR A LIQUID-TO-CRYSTAL PHASE-TRANSITION IN A CLASSICAL, 2-DIMENSIONAL SHEET OF ELECTRONS [J].

GRIMES, CC ;

ADAMS, G .

PHYSICAL REVIEW LETTERS, 1979, 42 (12) :795-798

[10] THE STRUCTURE OF THE CYLINDRICALLY CONFINED COULOMB LATTICE [J].

HASSE, RW ;

SCHIFFER, JP .

ANNALS OF PHYSICS, 1990, 203 (02) :419-448