Seminar
Short-wavelength Fluctuations in the Early Universe and
Related Topics
Dr.
Tomohiro Nakama
HKUST Jockey Club Institute for Advanced Study
20 Sep 2018 (Thursday)
2:00 pm
IAS4042, 4/F, Lo Ka Chung Building, Lee Shau Kee Campus, HKUST
Primordial fluctuations of a vast range of wavelengths were generated in the early Universe. The power spectrum of those on large scales has been well determined thanks to the observations of the anisotropy of the cosmic microwave background (CMB) radiation. Probing small-scale primordial fluctuations also gives valuable information about the early Universe. Diffusion damping of short-scale acoustic waves in the early Universe, and primordial black holes are among helpful methods in probing small-scale primordial fluctuations.
References include arXiv:1403.5407, 1703.10559, 1710.06945.
The seminar is free and open to the public. No registration is required. Seating is on a first come, first served basis.
HKUST Jockey Club Institute for Advanced Study
URL:
http://ias.ust.hk
Enquiries: ias@ust.hk / 2358 5912
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