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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 3 March 2017

Alejandra Castro: Siegel Modular Forms and Black Hole Entropy

1:00pm, CM221

In the language of statistical physics, an extremal black hole is a zero temperature system with a huge amount of residual entropy. Understanding which features of a quantum system can account for a large degeneracy of ground states at zero temperature will not only unveil interesting properties of quantum gravity, but will also uncover novel quantum systems.

In this talk I will present statistical systems, or more precisely counting formulas, that have the potential to account for the entropy of an extremal black hole. The goal is to capture and translate the robustness in gravity into data of the quantum system. One the microscopic side, which is the main emphasis of this talk, I want to illustrate not only how one can design generating functions with the desired features, but also present a procedure to extract the entropy systematically.

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


Mauro Fabrizio: Fatigue, Damage and Fracture by a Ginzburg-Landau Phase Field Model

2:00pm, CM219

The notion of fatigue is founded on the concept of degraded or tired material and is linked to the observation of damage, a consequence of the loading and unloading cycles. It is apparent that fatigue produces progressive damage involving plastic deformation, crack nucleation, creep rupture and finally rapid fracture. So, damage is the consequence of the gradual process of mechanical deterioration, that basically results in a structural component failure. The evolution of damage will be described by the coefficient of a fractional derivative, that represents the phase field, satisfying the Ginzburg-Landau equation.

Contact david.bourne@durham.ac.uk for more information about this event.