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Durham University

Research & business

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 5 October 2020

Arpit Das: Page curve for black hole radiation using “Islands”

12:00pm, Zoom

In this discussion, we shall first review various kinds of entropies and a pictorial representation of path integrals. Then we shall review the classical information paradox (in terms of an entropy inequality). We shall then see how the “Island formula” gives the page curve for the entropy of black hole radiation. Finally, we shall present a sketchy proof (using replica wormholes) of the Island Formula.

Contact sagharsadat.hosseinisemnani@durham.ac.uk, gabriel.arenas-henriquez@durham.ac.uk for more information about this event.


Rachel Oughton: Comparing multiple simulators with Intermediate Variable Emulation

1:00pm, ZOOM

Important systems are usually modelled by more than one simulator, and these may well not agree in every detail. One way in which two simulators of the same system can relate is in modelling a number of the same subprocesses. I will present 'intermediate variable emulation', a method adapting Bayesian emulation to enable us to compare simulators relating in this way. This method steps away somewhat from treating the simulator as a 'black box', by modelling it in terms of its subprocesses. I will demonstrate the method on two ocean carbon cycle simulators, first using the intermediate variable structure to gain more insight into a single simulator, and then comparing the two.

Contact georgios.karagiannis@durham.ac.uk, konstantinos.perrakis@durham.ac.uk for more information about this event.