韓玖榮

sition stein stein

研究方向

主要研究方向量子光學中的非線性、凝聚態物理。主要是利用非線性薛丁格方程研究光晶格中超冷玻色子的量子動力學相關的問題。超冷玻色子在漏斗勢中從三維過渡到一維動力學特徵、玻色子的費米化過程、緊束縛一維玻色原子在磁光晶格中的孤子動力學等。研究漏斗勢中超冷玻色氣體的性質。我們發現,隨著縱橫比增加,漏斗勢中縱向的密度發生了有趣的變化,超冷玻色氣體經歷了費米化。與拉伸的諧振子勢比較,發現囚禁於漏斗勢中的超冷玻色氣體很容易實現從三維的體系過渡到一維的體系。漏斗勢中的超冷玻色氣體進入費米化區域,隨著囚禁原子數的增加,動量分布的峰值變得越尖。接著從三維的非線性薛丁格方程(Gross-Pitaevskii方程)出發,推導出一維的非線性薛丁格方程,可以很好的描述漏斗勢中超冷玻色氣體的軸向動力學。最後討論了在實驗上實現漏斗勢中玻色子費米化的可行性。研究的結論可以為實驗上的實現提供一定的理論依據。研究自旋玻色子在光晶格中超流莫特相變,發現了相變條件和相變參數。其結果可以為量子信息、量子計算及存儲提供理論參考。

學術成果

近幾年的代表作:
(1)、Jiu-Rong Han, Yu-Zhu Wang, W.M. Liu,Quantum phase transition in two-component Bose–Einstein condensates in optical lattices, Physics Letters A ,Volume 332, Issues 1-2 , 2004, P. 131-140 (SCI收錄)
(2)、Jiu-Rong Han, J.M. Liu, Yu-Zhu Wang, Energy spectrum of two-component Bose-Einstein condensatein optical lattices, Commun. Theor. Phys.Vol. 43, No. 5, May 15, 2005,pages 809-813. (SCI收錄)
(3)、Jiu-Rong Han, Yu-Zhu Wang, W.M. Liu,Energy spectra of an ultracold Bose-Fermi mixture in optical lattices, J. Phys. B: At. Mol. Opt. Phys. 38 (2005) p.1–8 (SCI、EI收錄)
(4)、Jiu-Rong Han, Hai-Cao Zhang,Yu-Zhu Wang, Energy spectrum of ground State and excitation spectrum of quasi-particle forhard-core boson in optical lattices,Commun. Theor. Phys.  44 (2005) pp. 863–866. (SCI收錄)
(5)、 Liu Jin-Ming, HAN Jiu-Rong, and WANG Yu-Zhu , Multiparticle Generalization of Remote State Preparation,Commun. Theor. Phys., Vol. 42, No. 2, 2004,211–214. (SCI收錄)
(6)、Guang-Yuan Xu, Li Yan, Yong-Jun Wang, Xian-Feng Liu, Jiu-Rong Han,Study of dynamical behavior and fermionization of a bosonic gas in funnel potential} Chinese Physics B,17,4158, 2008 (SCI收錄)
(7)、 LI Yan, XU Guang-Yuan, Jiu-Rong Han, Dynamics of an Ultracold Bose Gas in Funnel-shaped Potential, Commun. Theor. Phys.,tobe accepted, 2009 (SCI收錄)
(8)、Wang Yong-Jun , Liu Xian-Feng,Han Jiu-Rong ,Energy spectrum and superfluidity of spin-2 ultracold bosons in optical lattices,Chinese Physics B, to be accepted ,2009.(SCI收錄)

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