ITP OpenIR  > 理论物理所科研产出  > SCI论文
Liu, XJ; Hu, H; Liu, XJ , Univ Florence, European Lab Nonlinear Spect, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.
Collisionless and hydrodynamic excitations of trapped boson-fermion mixtures
Source PublicationPHYSICAL REVIEW A
KeywordQuantum Degenerate Bose Time-dependent Traps Einstein Condensate Collective Excitations Zero-temperature Dynamical Stability Frequency-shifts Mixed Condensate Scissors Mode Phase-diagram
AbstractWithin a scaling ansatz formalism plus Thomas-Fermi approximation, we investigate the collective excitations of a harmonically trapped boson-fermion mixture in the collisionless and hydrodynamic limit at low temperature. Both the monopole and quadrupole modes are considered in the presence of spherical as well as cylindrically symmetric traps. In the spherical traps, the frequency of the monopole mode coincides in the collisionless and hydrodynamic regime, suggesting that it might be undamped in all collisional regimes. In contrast, for the quadrupole mode, the frequency differs largely in these two limits. In particular, we find that in the hydrodynamic regime the quadrupole oscillations with equal bosonic and fermionic amplitudes generate an exact eigenstate of the system, regardless of the boson-fermion interaction. This resembles the Kohn mode for the dipole excitation. We discuss in some detail the behavior of monopole and quadrupole modes as a function of boson-fermion coupling at different boson-boson interaction strength. Analytic solutions valid at weak and medium fermion-boson coupling are also derived and discussed.
2003
ISSN1050-2947
Volume67Issue:2Pages:-
Subject AreaPhysics
Indexed BySCI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/13363
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLiu, XJ , Univ Florence, European Lab Nonlinear Spect, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.
Recommended Citation
GB/T 7714
Liu, XJ,Hu, H,Liu, XJ , Univ Florence, European Lab Nonlinear Spect, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.. Collisionless and hydrodynamic excitations of trapped boson-fermion mixtures[J]. PHYSICAL REVIEW A,2003,67(2):-.
APA Liu, XJ,Hu, H,&Liu, XJ , Univ Florence, European Lab Nonlinear Spect, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy..(2003).Collisionless and hydrodynamic excitations of trapped boson-fermion mixtures.PHYSICAL REVIEW A,67(2),-.
MLA Liu, XJ,et al."Collisionless and hydrodynamic excitations of trapped boson-fermion mixtures".PHYSICAL REVIEW A 67.2(2003):-.
Files in This Item:
File Name/Size DocType Version Access License
Collisionless and hy(152KB) 开放获取LicenseApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, XJ]'s Articles
[Hu, H]'s Articles
[Liu, XJ , Univ Florence, European Lab Nonlinear Spect, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, XJ]'s Articles
[Hu, H]'s Articles
[Liu, XJ , Univ Florence, European Lab Nonlinear Spect, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, XJ]'s Articles
[Hu, H]'s Articles
[Liu, XJ , Univ Florence, European Lab Nonlinear Spect, Via Nello Carrara 1, I-50019 Sesto Fiorentino, Italy.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.