Spectroscopy of Interacting Quasiparticles in Trapped Ions

被引：68

作者：

Jurcevic, P. ^{[1
,2
]}

Hauke, P. ^{[1
,3
]}

Maier, C. ^{[1
,2
]}

Hempel, C. ^{[1
,2
]}

Lanyon, B. P. ^{[1
,2
]}

Blatt, R. ^{[1
,2
]}

Roos, C. F. ^{[1
,2
]}

机构：

[1] Austrian Acad Sci, Inst Quantenopt & Quanteninformat, A-6020 Innsbruck, Austria

[2] Univ Innsbruck, Inst Expy Phys, A-6020 Innsbruck, Austria

[3] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 10期

基金：

奥地利科学基金会;

关键词：

MANY-BODY SYSTEM; QUANTUM SIMULATIONS; ENTANGLEMENT; PROPAGATION; DYNAMICS; STATES; FIELD;

D O I：

10.1103/PhysRevLett.115.100501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The static and dynamic properties of many-body quantum systems are often well described by collective excitations, known as quasiparticles. Engineered quantum systems offer the opportunity to study such emergent phenomena in a precisely controlled and otherwise inaccessible way. We present a spectroscopic technique to study artificial quantum matter and use it for characterizing quasiparticles in a many-body system of trapped atomic ions. Our approach is to excite combinations of the system's fundamental quasiparticle eigenmodes, given by delocalized spin waves. By observing the dynamical response to superpositions of such eigenmodes, we extract the system dispersion relation, magnetic order, and even detect signatures of quasiparticle interactions. Our technique is not limited to trapped ions, and it is suitable for verifying quantum simulators by tuning them into regimes where the collective excitations have a simple form.

引用

页数：5

共 38 条

[1]

Blatt R, 2012, NAT PHYS, V8, P277, DOI [10.1038/nphys2252, 10.1038/NPHYS2252]

[2]

Bloch I, 2012, NAT PHYS, V8, P267, DOI [10.1038/nphys2259, 10.1038/NPHYS2259]

[3] Engineered two-dimensional Ising interactions in a trapped-ion quantum simulator with hundreds of spins [J].