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X-WR-CALNAME:Centre for Mathematical Sciences
X-ORIGINAL-URL:https://math-sciences.org
X-WR-CALDESC:Events for Centre for Mathematical Sciences
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DTSTART:20130101T000000
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DTSTART;TZID=UTC:20131127T153000
DTEND;TZID=UTC:20131127T163000
DTSTAMP:20230921T182220
CREATED:20151210T234324Z
LAST-MODIFIED:20151211T163432Z
UID:370-1385566200-1385569800@math-sciences.org
SUMMARY:Tony Padilla (Nottingham University)
DESCRIPTION:Sequestering the Standard Model Vacuum Energy\nWe propose a very simple reformulation of General Relativity\, which completely sequesters from gravity all of the vacuum energy from a matter sector\, including all loop corrections and renders all contributions from phase transitions automatically small. The idea is to make the dimensional parameters in the matter sector functionals of the 4-volume element of the universe. For them to be nonzero\, the universe should be finite in spacetime. If this matter is the Standard Model of particle physics\, our mechanism prevents any of its vacuum energy\, classical or quantum\, from sourcing the curvature of the universe. The mechanism is consistent with the large hierarchy between the Planck scale\, electroweak scale and curvature scale\, and early universe cosmology\, including inflation. Consequences of our proposal are that the vacuum curvature of an old and large universe is not zero\, but very small\, that wDEC1 is a transient\, and that the universe will collapse in the future.
URL:https://math-sciences.org/event/tony-padilla-nottingham-university/
LOCATION:Room 205\, 2-5\, Kirkby Place\, Plymouth\, PL4 6DT\, United Kingdom
CATEGORIES:Seminars,Theoretical Physics
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