IAS Program on Particle Theory:- Think Emergent- What If We Abandon the Fundamentality of (Quantum) Gravity?
In this talk, the speaker will present a published and an ongoing work in the direction of emergent gravity. The first is what she dubbed as the generalized Unruh effect, a mapping from arbitrary states in the Fock space of positive Minkowski (Kruskal) modes to Rindler (Schwarzschild) modes obtained by Bogoliubov transformation. The special case of vacuum state -- thermal bath mapping has been well known in the textbooks, the original Unruh effect. The speaker will discuss the interesting physical implications of the generalized Unruh effect on the black hole information paradox. In the second part, she will give a novel conjecture of the dark energy when considering the spacetime as a 4d volume-conserved fluid. Einstein’s equation with an always-positive metric term (Lambda, but not necessarily constant) can be interpreted as the differential version of this assumed conservation of 4d volume at linear order. The rich phenomenology of this theory will be discussed, including its solution to the anthropic problem of our currently dark-energy-dominated universe, and high-redshift over-evolved astrophysical objects that have been recently popping up in the James Webb Space Telescope(JWST) survey.
時間：2024.11.25(一) 14:00~15:00
地點：香港科技大學 李兆基校園 盧家驄薈萃樓* 高研院4042室
講者：Dr. Angela CHEN An-Qi 陈安琪 博士 (Kavli Institute for the Physics and Mathematics of the Universe**)
語言：英語
免費講座。座位先到先得
【此屬轉載信息，以主事單位發布為準】
*Lo Ka Chung Building, Lee Shau Kee Campus
**東京大学 カブリ数物連携宇宙研究機構
此活動由香港科技大學 賽馬會高等研究院主辦。
