Title: [NTU-NCTS String Seminar] Holographic study of confining QCD-like theory on non-SUSY D2 brane and partial deconfinement
Speaker: Dr. Adrita Chakraborty (NTHU)
Time: Mar. 24, 2023 (Fri.) 14:30-15:30
Venue: Rm. 815, Dept. of Physics, NTU

Abstract:
We elucidate the nonperturbative aspects of non-conformal 2+1D 
Yang-Mills-like worldvolume theories on both isotropic and anisotropic 
non-supersymmetric D2 brane solutions of type II supergravity. Because 
of broken conformality, these theories possess running coupling similar 
to the real-world QCD. We implement the holographic notion to study some 
salient QCD-like confining properties, e.g., flux-tube tension and 
glueball masses in the low-energy nonperturbative sector of these 
non-SUSY theories. In the case of anisotropic D2 brane, variation of the 
anisotropy parameter in the low-energy scale manifests a dual picture of 
HP transition and QCD confinement-deconfinement phase transition from 
the behaviours of the above QCD features in the chosen pure YM theory. 
We contemplate the same from an empirical finite temperature scenario. 
The transition point exhibits a smooth crossover. We argue this issue by 
speculating the presence of "partially deconfined" mixed QCD phases 
where glueballs and quark-gluon plasma coexist. Holographically, one may 
comprehend these phases as the dual of small evaporating black holes.