第十届粒子所“青年之星”2024年度学术论坛

Session

Thursday Afternoon First Session

21 Nov 2024, 14:00

9409

Contribution list Timetable

26. 旋转黑洞背景下的施温格效应

yize cai

21/11/2024, 14:00

我们对旋转Myers-Perry黑洞中的全息Schwinger效应进行了势分析。通过计算附着在AdS空间中D3膜探针上弦的经典作用量，我们计算了产生的粒子对之间的势能。我们发现，增加角动量会减少势垒，从而增强Schwinger效应，这与之前通过局部洛伦兹变换得到的结果一致。另外我们还发现这些效应在粒子对位于横向平面时比沿纵向方向时更为明显。此外，我们还讨论了在强耦合下，随着角动量的影响，Schwinger效应如何随着剪切粘度与熵密度比的变化而变化。

23. CP asymmetries of $t \to c \gamma$ and $t \to cg$ decays in the aligned two-Higgs-doublet model（在对齐双希格斯二重态模型下对$t \to c \gamma$ 和 $t \to cg$ 衰变过程中CP破坏的研究）

瑞琳 范 (华中师范大学)

21/11/2024, 14:20

We study the CP asymmetries of the rare top-quark decays $t \to c \gamma$ and $t \to cg$ in the aligned two-Higgs-doublet model (A2HDM), which is generically characterized by new sources of CP violation beyond the Standard Model (SM). Specifically, the branching ratios and CP asymmetries of these rare top-quark decays are explicitly formulated, with an emphasis on the origins of weak and...

10. String tension and Polyakov loop in a rotating background

君霞 陈

21/11/2024, 14:40

We study the influence of a rotation on the string tension and the temperature of the confinement-deconfinement transition of gluodynamics by gauge/gravity duality. We explore two distinct approaches, global and local transformations, to introduce rotation and compare the results. It is shown that the string tension extracted from the free energy in the presence of a heavy quarkonium decreases...

33. Functional renormalization group study of the quark-meson model with omega and rho vector mesons

Mohammed Osman

21/11/2024, 15:00

The functional renormalization group (FRG) is a non-perturbative method that considers quantum and thermal fluctuations. Using the FRG flow equations, the critical region of the two-flavor quark-meson model in a finite isospin chemical potential with omega and rho vector mesons interactions is investigated in this work. We also use the traditional mean-field method to calculate the phase...

32. Functional renormalization group study of the quark-meson model with omega and rho vector mesons

Mohammed Osman

The functional renormalization group (FRG) is a non-perturbative method that considers quantum and thermal fluctuations. Using the FRG flow equations, the critical region of the two-flavor quark-meson model in a finite isospin chemical potential with omega and rho vector mesons interactions is investigated in this work. We also use the traditional mean-field method to calculate the phase...