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Seminar: The CMB Anisotropies and Polarization: a probe of the early Universe physics - 17/01/2020
Seminar: The Cosmic Microwave Background Anisotropies and Polarization: a probe of the early Universe physics
Trân trọng kính mời các đồng nghiệp, các bạn sinh viên, học viên cao học, và nghiên cứu sinh tới tham dự buổi seminar của trường Đại học Phenikaa.
Người trình bày: TS. Guillaume Patanchon AstroParticle and Cosmology Laboratory, Université de Paris
Thời gian: 14:30, Thứ Sáu, ngày 17/01/2020.
Địa điểm: Phòng 601, nhà A1, Trường Đại học Phenikaa, Yên Nghĩa, Hà Đông, Hà Nội
Tiêu đề: The Cosmic Microwave Background Anisotropies and Polarization: a probe of the early Universe physics
The Universe is expanding and its dynamics is described by the cosmological model based on Einstein’s general relativity. However, the nature of the two main components of the Universe, the dark energy and dark matter, as well as the physics of the early phases of the Universe happening a fraction of second after the Big-Bang are not understood today. The Cosmic Microwave Background (CMB) is a relic emission filling the whole Universe at the temperature of 2.75K today and was released 380000 years after the Big-Bang when the electrons and protons combined to form the first atoms. The small temperature fluctuations of the CMB, of the order of 100 mK, are a wonderful probe providing information about those unknown quantities, constraining the physical conditions in the primordial Universe, in particular with the measurement of the polarization of the emission.
In this seminar I will introduce the cosmological model, the physics of the CMB and present recent and future observations of the CMB.