| Title | Trapped ultracold bosons in periodically modulated lattices |
| Author | |
| Corresponding Author | Huo, Jia-Wei |
| Publication Years | 2011-10-07
|
| DOI | |
| Source Title | |
| ISSN | 2469-9926
|
| EISSN | 2469-9934
|
| Volume | 84Issue:4 |
| Abstract | Motivated by the recent rapid development of the field of quantum gases in optical lattices, we present a comprehensive study of the spectrum of ultracold atoms in a one-dimensional optical lattice subjected to a periodic lattice modulation. Using the time-dependent density matrix renormalization group method, we study the dynamical response due to lattice modulations in different quantum phases of the system with varying density. For the Mott-insulating state, we identify several excitation processes, which provide important information about the density profile of the gases. For the superfluid, the dynamical response can be well described in a local density approximation. This simplification can be valuable in understanding the strong-correlated superfluid in a slow-varying harmonic potential. All these spectroscopic features of an inhomogeneous system can be used as a test for the validity of the Bose-Hubbard model in a parabolic trapping potential. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| Important Publications | NI Journal Papers
|
| SUSTech Authorship | Others
|
| Funding Project | DFG[FOR 801]
|
| WOS Research Area | Optics
; Physics
|
| WOS Subject | Optics
; Physics, Atomic, Molecular & Chemical
|
| WOS Accession No | WOS:000295629100007
|
| Publisher | |
| EI Accession Number | 20114114419364
|
| EI Keywords | Crystal lattices
; Electron traps
; Excited states
; Hubbard model
; Local density approximation
; Modulation
; Optical lattices
; Optical materials
; Statistical mechanics
|
| ESI Classification Code | Optical Devices and Systems:741.3
; Laser Beam Interactions:744.8
; Mathematics:921
; Classical Physics; Quantum Theory; Relativity:931
; Crystal Lattice:933.1.1
; Electronic Structure of Solids:933.3
|
| ESI Research Field | PHYSICS
|
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:7
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/30447 |
| Department | Department of Physics |
| Affiliation | 1.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China 2.S Univ Sci & Technol China, Dept Phys, Shenzhen, Peoples R China 3.ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland 4.Univ Munich, Dept Phys, D-80333 Munich, Germany 5.Univ Munich, Arnold Sommerfeld Ctr Theoret Phys, D-80333 Munich, Germany |
| Recommended Citation GB/T 7714 |
Huo, Jia-Wei,Zhang, Fu-Chun,Chen, Weiqiang,et al. Trapped ultracold bosons in periodically modulated lattices[J]. PHYSICAL REVIEW A,2011,84(4).
|
| APA |
Huo, Jia-Wei,Zhang, Fu-Chun,Chen, Weiqiang,Troyer, M.,&Schollwoeck, U..(2011).Trapped ultracold bosons in periodically modulated lattices.PHYSICAL REVIEW A,84(4).
|
| MLA |
Huo, Jia-Wei,et al."Trapped ultracold bosons in periodically modulated lattices".PHYSICAL REVIEW A 84.4(2011).
|
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Huo-2011-Trapped ult（530KB） | Restricted Access | -- | ||||
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