Hawking Radiation from an Acoustic Black Hole on an Ion Ring

被引：114

作者：

Horstmann, B. ^{[1
]}

Reznik, B. ^{[2
]}

Fagnocchi, S. ^{[3
,4
]}

Cirac, J. I. ^{[1
]}

机构：

[1] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[2] Tel Aviv Univ, Dept Phys & Astron, IL-69978 Ramat Aviv, Israel

[3] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[4] SISSA, I-34136 Trieste, Italy

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 25期

基金：

以色列科学基金会;

关键词：

SONIC ANALOG;

D O I：

10.1103/PhysRevLett.104.250403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this Letter we propose to simulate acoustic black holes with ions in rings. If the ions are rotating with a stationary and inhomogeneous velocity profile, regions can appear where the ion velocity exceeds the group velocity of the phonons. In these regions phonons are trapped like light in black holes, even though we have a discrete field theory and a nonlinear dispersion relation. We study the appearance of Hawking radiation in this setup and propose a scheme to detect it.

引用

页数：4

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