发布日期:2024-04-06 浏览次数:次
基本信息 联系方式: zhenfang@hnu.edu.cn
研究领域 全息原理(AdS/CFT)在低能强相互作用中的应用:基于Maldacena于1998年提出的AdS/CFT对偶猜想,人们普遍相信存在一个一般的将强耦合规范理论与弱耦合引力理论对应起来的原理,即全息对偶原理。AdS/CFT猜想起源于超弦理论中对偶问题的研究,它把五维反德西特时空中的弱耦合IIB超引力理论与边界上的强耦合N=4超杨米尔斯理论联系起来。量子色动力学(QCD)是描述强相互作用的基本理论。在低能区,由于渐近自由性,QCD耦合常数变得很大,使得QCD在低能端具有强耦合性质,微扰计算不再适用,需要寻求非微扰方法研究。而全息对偶原理(AdS/CFT)恰恰提供了这样一种强大的研究手段。自从AdS/CFT被提出以来,已经有大量的工作将此原理应用于对低能QCD非微扰性质的探讨。然而,到目前为止并没有一个被普遍认可的能够完整而自洽地描述低能QCD各种非微扰性质的全息模型。如何建立一个能够自洽地描述低能强相互作用的全息QCD模型仍然是当前一个重要的研究方向。引力与引力波相关研究:中国空间引力波探测太极联盟成员,课题组可与国家天文台等科研单位进行联合培养,进行引力波物理及引力波探测相关的研究工作。
学术成果 1. L. X. Cui, Z. Fang and Y. L. Wu, Infrared-improved soft-wall AdS/QCD model for mesons, Eur. Phys. J. C 76, no. 1, 22 (2016);2. L. X. Cui, Z. Fang and Y. L. Wu, Finite temperature effect in infrared-improved AdS/QCD model with back reaction of bulk vacuum, Chinese Physics C Vol. 40, No. 6 (2016) 063101;3. K. Chelabi, Z. Fang , M. Huang, D. Li and Y. L. Wu, Realization of chiral symmetry breaking and restoration in holographic QCD, Phys. Rev. D 93, 101901(R);4. K. Chelabi, Z. Fang, M. Huang, D. Li and Y. L. Wu, Chiral Phase Transition in the Soft-Wall Model of AdS/QCD, JHEP 1604, 036 (2016);5. Z. Fang, S. He and D. Li, Chiral and Deconfining Phase Transitions from Holographic QCD Study, Nucl. Phys. B 907, 187 (2016);6. Z. Fang, Y. L. Wu and L. Zhang, Chiral phase transition and meson spectrum in improved soft-wall AdS/QCD, Phys. Lett. B 762, 86 (2016);7. Z. Fang, D. Li and Y. L. Wu, IR-improved Soft-wall AdS/QCD Model for Baryons, Phys. Lett. B 754, 343 (2016);8. Z. Fang, Holographic model for the baryon octet, Phys. Rev. D 94, no. 7, 074017 (2016);9. Z. Fang, Anomalous dimension, chiral phase transition and inverse magnetic catalysis in soft-wall AdS/QCD, Phys. Lett. B 758, 1 (2016);10. D. Li, S. He and Z. Fang, Note on stability of new hyperbolic AdS black holes and phase transitions in Ré nyi entropies, Nucl. Phys. B 923, 1 (2017);11. Z. Fang, Y. L. Wu and L. Zhang, Chiral phase transition with 2 + 1 quark flavors in an improved soft-wall AdS/QCD model, Physical Review D, 98, 114003 (2018); 12. Z. Fang, Y. L. Wu and L. Zhang, Chiral phase transition and QCD phase diagram from AdS/QCD, Physical Review D, 99, 034028 (2019); 13. Z. Fang, Y. L. Wu and L. Zhang, Octet meson spectra and chiral phase diagram in the improved soft-wall AdS/QCD model, Physical Review D, 100, 054008 (2019).