Tuning heat transport in trapped-ion chains across a structural phase transition

被引：26
|
作者：
Ruiz, A. [1 ,2 ]
Alonso, D. [1 ,2 ]
Plenio, M. B. [3 ]
del Campo, A. [4 ,5 ]
机构：
[1] Univ La Laguna, Dept Fis, San Cristobal la Laguna 38203, Spain
[2] Univ La Laguna, IUdEA Inst Univ Estudios Avanzados, San Cristobal la Laguna 38203, Spain
[3] Univ Ulm, Inst Theoret Phys, D-89069 Ulm, Germany
[4] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[5] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA
来源：
PHYSICAL REVIEW B | 2014年 / 89卷 / 21期
关键词：
QUADRUPOLE STORAGE-RING; COULOMB CRYSTALS; DEFECT FORMATION; CONDUCTION; SYSTEMS; STATE;
D O I：
10.1103/PhysRevB.89.214305
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We analyze the heat transport in an ion chain that is confined in a strongly anisotropic Paul trap. To drive a heat current across the chain different pairs of counterpropagating laser beams are applied to the ions on the edges. The lasers behave as heat reservoirs operating at different temperatures, and a nonequilibrium heat flow can be sustained. The control of the spatial distribution of the ions in the chain by variation of the trapping frequencies makes ion chains an ideal testbed to study heat transport properties in finite open systems of low dimensionality with tunable nonlinearities. We explore heat transport across a structural phase transition between the linear and zigzag configurations, identifying the condition for optimal heat transport.
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收藏
页数：8
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