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Development of a Transition-Edge Sensor for CMB experiments: A study for a novel sensor for cosmology experiments

Book Development of a Transition-Edge Sensor for CMB experiments: A study for a novel sensor for cosmology experiments

Book details

- By: Yuri Venturini(Author)
- Language: English
- Format: PDF - Djvu
- Pages:120
- Publisher: Edizioni Accademiche Italiane (March 27, 2017)
- Bestsellers rank: 6
- Category: Science & Math
*An electronic version of a printed book that can be read on a computer or handheld device designed specifically for this purpose.
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Since its first observation in 1964 by Wilson and Penzias, the Cosmic Microwave Background radiation (CMB) has been studied by many experiments, which have measured many of its characteristics. Measuring the CMB is an instrument to "observe" the past history of the Universe since it was released about 380,000 years after the Big Bang, when the Universe became, for the first time, transparent to light. CMB radiation is intrinsically polarized due to photon-electron scattering in the first moments of life of the Universe and there are two kinds of polarization: an irrotational part (E-modes) and a rotational part (B-modes). In particular, anisotropies in the B-modes spectrum could only have been generated by tensor perturbations (i.e. primordial gravitational waves) that rised up during the so-called inflation: a period of accelerated expansion of the Universe, immediately after the Big Bang. Therefore measuring B-modes anisotropies would be a unique signature of tensor perturbations and, thus, a smoking gun for inflation. This means opening a window on what happened just few moments after the Big Bang, which is the goal of current CMB experiments.

The author was born in Viareggio (Italy) where he attended the Scientific High School "Barsanti e Matteucci". In 2011 he matriculated at the Faculty of Physics, University of Pisa. He studied astrophysics in Pisa and graduated in March 2017 with a research in collaboration with Scuola Normale Superiore and the National Institute of Nuclear Physics.


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