Seminar:- Spin Spectroscopy During Inflation
Cosmological correlation functions encode the spectrum of particles during inflation, in analogy to scattering amplitudes in colliders. Particles with masses comparable to the Hubble scale lead to distinctive signatures on non-Gaussianities that reflect their masses and spins. Interestingly, the symmetries of de Sitter space allows for a category of so-called partially massless particles that have no flat space analog, but could have existed during inflation. In this talk, the speaker will discuss the key spectroscopic features of these particles in the soft limits of scalar/tensor correlation functions, highlighting the role that spin plays in violating the consistency relations of single-field inflation.
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：李訓瑢 博士 Dr. Hayden Lee(香港科技大學 賽馬會高等研)