Fluxes and charges in de Sitter

Add to your list(s) Download to your calendar using vCal

• Prof. Marika Taylor, University of Southampton
• Wednesday 23 February 2022, 14:15-15:15
• ONLINE - Details to be sent by email.

If you have a question about this talk, please contact Bipasha Chakraborty.

In this talk we will discuss the definition of conserved quantities in asymptotically locally de Sitter spacetimes. One may define an analogue of holographic charges both at future and past infinity and at other Cauchy surfaces, as integrals over the intersection of timelike surfaces C and these Cauchy surfaces. In general these charges depend on the choice of timelike surface C but if gravitational flux is absent the charges are conserved quantities, independent of the choice of timelike surface. If there is net gravitational flux entering or leaving the spacetime region bounded by two timelike surfaces and two Cauchy surfaces, this may be characterised in terms of a corresponding change in charge. We illustrate these discussions using examples such as Kerr de Sitter black holes and Kerr Robinson-Trautmann solutions.

This talk is part of the Theoretical Physics Colloquium series.

This talk is included in these lists:

• All CMS events
• All Talks (aka the CURE list)
• CMS Events
• Cambridge Astronomy Talks
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• DAMTP info aggregator
• HEP web page aggregator
• Interested Talks
• Kavli Institute for Cosmology Talk Lists
• ONLINE - Details to be sent by email
• Priscilla
• Theoretical Physics Colloquium
• bld31

Note that ex-directory lists are not shown.