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Research

Research lectures, seminars and events

The events listed in this area are research seminars, workshops and lectures hosted by Durham University departments and research institutes. If you are not a member of the University, but  wish to enquire about attending one of the events please contact the organiser or host department.


 

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Events for 11 August 2017

Changing Climates:Realities, Representations and Responses to Environmental Challenges - Postgraduate Conference

St. Chad’s College, Durham University, Durham, DH1 3RH., TBC

Contact stchadsmcr.academic@durham.ac.uk for more information about this event.


Felix Haehl: Non-linear gravity from entanglement in CFTs

1:00pm, CM221

Nonlinear gravitational equations emerge directly from the physics of conformal field theories. I consider a particular broad class of perturbatively excited states in CFTs and show that up to second order in perturbation theory, the entanglement entropy for all ball-shaped regions can always be represented geometrically (via the Ryu-Takayanagi formula) by an Anti-de Sitter (AdS) geometry. I show that such a geometry necessarily satisfies Einstein's equations perturbatively up to second order, with a stress energy tensor arising from matter fields associated with the sourced primary operators. While this is motivated by, and a consistency check of AdS/CFT, I make no assumptions about this duality at all.

Contact daniele.dorigoni@durham.ac.uk, jyotirmoy.bhattacharya@durham.ac.uk for more information about this event.