Theory Seminar
KEK 素粒子原子核研究所・理論セミナー
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TITLE： |
The QCD nature of Dark Energy,
signatures and applications |
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(in English) |
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SPEAKER： |
Dr Federico Urban (Univ. British
Columbia) |
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DATE： |
October
12 (Tue.) 11:00-12:00 |
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PLACE: |
Kenkyu-Honkan
1F Meeting Room 1 |
（ABSTRACT）The origin of the observed dark energy could be explained entirely within the standard model, with no new fields required. I will review the ideas underlying the appearance of the Veneziano ghost oflow-energy QCD and show how nontrivial spacetimes (compact topologies and time-dependent background) give rise to interesting new effects such as Casimir energies and gravitational production of unphysical states. I will then discuss the cosmological applications of such effects (dark energy, generation of primordial magnetic fields) and the possible many ways for this proposal to be tested.