基本介紹
- 中文名：賈多傑
- 國籍：中國
- 民族：藏族
- 出生地：藏族鄉扎隆溝村
- 出生日期：1969年
- 畢業院校：蘭州大學
- 代表作品：《高等量子力學》，《量子電動力學》
工作經歷,教學經歷,相關基金項目,獲獎及工作,
工作經歷
蘭州大學數學系（本科， 1991；碩士，1994）；
蘭州大學物理系 （博士，2001）；
西北民族學院數學系講師(1994-1998)；
中國科學院近代物理研究所（博士後，2003）；
中國科學技術大學交叉科學理論研究中心訪學（2004年8-10月）。
美國北卡羅來納州立大學物理系訪問學者（2007年3-2008年3月）。
教學經歷
研究生《高等量子力學》；《量子電動力學》；《多粒子體系的量子理論》。本科生《大學物理學》，《近代物理前沿講座》。
相關基金項目
國家自然科學基金—規範場內部結構與新拓撲不變數（No.19775021；主要參加者1998-2000，）；
中國科學院近代物理研究所所長基金項目—Bose-Einstein凝聚體中的拓撲激發研究（2000-2003，主要承擔者）；
國家自然科學基金（東西部項目）—場論和宇宙學中的非微擾方法研究（No.10547009；主要承擔者，2006-2008）.
西北師範大學科技與創新工程項目（NWNU-KJCXGC-03-41，主要承擔者，2007-2009）
獲獎及工作
基金項目—凝聚態宇宙時空缺陷拓撲場論，獲2003年甘肅省科技進步一等獎（主要參加者）
拓撲場論的數學基礎： 研究了phi-映射拓撲場論的廣函式數學基礎，為矢量場delta-函式的拓撲展開定理給出了一個數學證明。
拓撲場論在量子力學和量子相干現象中的套用：從物理系統的內部對稱性出發給出了量子力學中的整數和半整數量子化條件，並證明前者由第一類Chern數所描述，而後者由Hopf不變數和’t Hooft不變數所描述 [Chin. Phys. Lett . 18,473 (2001)]。提出了量子相干物質的一種有效規範動力學，由此給出轉動的各向異性勢阱中BEC的一個基態解和q重的渦旋解,以及產生渦旋的臨界轉動頻率，該頻率在各向同性情形下與C. J. Pethick 和H. Smith等人的結果相一致，並揭示了為什麼凝聚體的總渦旋度是拓撲量子化的[Phys. Lett . A290,120 (2001)]。給出了二分量BEC的一個新的環流條件，它是Mermin-Ho關係的一種推廣 [Phys.Lett.A16,29 (2001); High Energy Phys and Nucl. Phys. 27, 1 (2003)]；又見[Mod. Phy. Lett. B, 20, 16 (2006) 995-1005]。
規範場非微擾性質，QCD真空及強子物理：以SU(2)規範勢分解及內部結構為基礎，研究了旋量場的拓撲性質，討論了Yang-Mills 理論的Abel結構和瞬子的拓撲缺陷效應，提出了一個新的瞬子的作用量表述 [Mod.Phys.Lett.A290,120 (2001)1863]；對於未加規範條件的Yang-Mills理論，提出了SU(2)規範場的一種新的離殼分解[High Energy Phys and Nucl. Phys. 27, 4 (2003)]；發現自旋為1旋量BEC基態在偏離單模近似下是SO(3)對稱破缺態並強烈地依賴於系統磁性[Int. J. Mod.Phys. B]。給出大耦合參數下GP方程的一個近似渦旋解。
最近的工作: 從SU(2) Yang-Mills理論出發導出了QCD真空的對偶`Abel黑格斯模型，得到凝聚真空的Ginzburg-Landau參數和膠子能譜的一種計算方案。
Duojie Jia (also Duoje Jiadig)Associated Professor at Institute of theoretical Physics, College of Physics and Electronic Engineering, NorthwestNormalUniversity.
Research Area:Nonperturbative gauge theory and applications, with focus in nonperturbative approach to QCD and hadron Physics.
Ph. D., LanzhouUniversity (2001, Theoretical Physics),.
MasterLanzhouUniversity (1994 Pure Mathematics);
Postdoctoral Fellow Institute of Modern Physics,Chinese Academy of Sciences (2001-2003，Theoretical Physics).
Lecturer: Department of Mathematics, NorthwestUniversity for Nationality (1994-1998);
Visiting scholar
Interdisciplinary Center for Theoretical Study, University of Science & Technology of China (Aug. –Oct. 2004).
Department of Physics, North Carolina State University, USA (Mar. 2007-Feb. 2008)
Teaching Experiences:
Advanced Quantum Mechanics; Quantum Electrodynamics; Quantum Theory of Many-particle Systems；University Physics;Frontier of Modern Physic;.
Research: Mathematical foundation of the topological field theory; gauge field decomposition in terms of new variables and its applications in quantum coherent and condensed systems, and in nonperturbative aspects of gauge theories. The works include the Abelian Projection of Yang-Mills theory without gauge-fixing, integer and half-integer quantization conditions of the spinless and spin-1/2 particles, the topological defect effect of the instanton for non-Abelian gauge theory, effective gauge dynamics for Bose-Einstein condensates, generalized Mermin-Ho relation; the analytical solution to vortex for strong interacting condensates; off-shell decomposition of SU(2) gauge field and the low-energy variables of the YM theory that may realize the dual-superconductor picture of the color confinement. Recently, I mainly focus on the nonperturbative QCD and hadron physics, including the glueball physics.
Foundation undertaken:
National Natural Science Foundation of P.R. China: Gauge field decomposition and new topological invariants (No.19775021,1998-2000，main participator)；Superintendent Foundation of Institute of Modern Physics, Chinese Academic of Sciences:Theoretical Investigation of topological excitations in Bose-Einstein condensates (2000-2003，main undertaker). National Natural Science Foundation of P. R. China (North-East Project): Nonperturbative Approaches to Field andCosmology. (No.10547009, 2006-2008，main undertaker).
AwardsFirst-grade Award of Science and Technology Progress of Gansu Province (2003) for theproject---Topological field theory of condenses states and cosmological time-space defects.
Recent Publications:
Y. S Duan and Duoje Jia, Integer and half-integer quantization conditions in quantum mechanics, Chin. Phys. Lett . 18,473 (2001).
Duoje Jiaand Y. S. Duan, Topological effects of instantons due to the defects, Mod. Phys. Lett. A, 16, 29(2001)1863-1869.
Y. S. Duan and Duoje Jia, Effective gauge dynamics of the Bose-Einstein condensates, Phys. Lett. A 290，3-4，(2001)120-126
Duoje Jia, Xiguo Lee and Y. S. Duan, Circulation condition of two-component Bose-Einstein condensate, Phys. Lett. A 289，4-5(2001)245-250.
Duoje Jia and Xiguo Lee, Monopole mechanism of Yang-Mills theory without gauge-fixing, High Energy Phys and Nucl. Phys. 27, No 4 (2003)293-298.
Xiguo Lee and Duoje Jia, SU(2) gauge field decomposition and Circulation condition for Bose-Einstein condensate, High Energy Phys and Nucl. Phys. 27, No 1 (2003).
Xiguo Lee, Yuan Gao and Duoje Jia, Kaon effective mass in nuclear matter, High Energy Phys and Nucl. Phys. 37, No 11 (2003)995-998.
Xuyan and Duoje Jia et al.,, The Mode-deviation effect of trapped spinor Bose gas beyond mean field theory, Int. J. Mod. Phys. B. 18 (2004)1339-1349.
Xuyan and Duoje Jia et al., Singly quantized vortex solution in Bose-Einstein condensates in large-N limits, Act. Phys. Sin. 53 (2004) 2831-2833.
Duoje Jia, Infrared Abelization of Yang-Mills Theory via Abelian Higgs variables, High Energy Phys. and Nucl. Phys. 30,3（2006）196-200
Xuyan and Duoje Jia, Trial solution and critical frequency to the singly quantized vortex in big Bose-Einstein condensates, Mod. Phy. Lett. B, 20, 16 (2006) 995-1005.
Duojie Jia, and De-Zhen Ai, Dual superconductor vacuum of strongly-coupled SU(2) Yang-Mills Theory, High Energy Phys. and Nucl. Phys. 31 (5) (2007):64-67.
DuojieJia and Yan Xu et al., Nondegenerated Spin States of a Trapped Spinor Bose gas Beyond Mean Field Theory, Int. J. Mod. Phys. B. 22, 3 (2008) 189-204.
賈多傑，愛德臻，關於規範場頂角計算的置換群陪集簡化方法，Journal of Northwest Normal University(Natural) (西北師範大學學報[自])，42 (2) (2006):45-49.
Duojie Jia, Abelian-Higgs phase of SU(2) Yang-Mills theory and glueball energy, Chinese Physsics，C [HEP&NP]. 32,No.7 (2008 ).
