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PKU HEP Seminar and Workshop (北京大学高能物理组)

Solitons and primordial black holes from cosmological phase transitions

by Ke-Pan Xie (University of Nebraska-Lincoln)

Asia/Shanghai
S408

S408

Description
Solitons generally exist in physical systems at different scales. This talk will first briefly introduce various solitons forming from cosmological phase transitions, including topological defects and non-topological solitons. Then I will focus on the fermion field non-topological solitons, discussing their formation during a first-order phase transition (FOPT). After that, I will discuss the connection between solitons and primordial black holes (PBHs), showing that the fermion solitons can collapse into PBHs, which provides a novel mechanism for PBH production in a FOPT. 报告人简介: 谢柯盼,美国内布拉斯加大学林肯分校博士后研究员。2013年本科毕业于浙江大学,2018年博士毕业于北京大学,2018到2021年在韩国首尔大学进行博士后研究。主要研究领域为粒子宇宙学、对撞机物理。 Tencent/VOOV Meeting ID: 671-537-343