Triangle Seminars
Monday, 13 Mar 2006
Adding branes to hyperkahler manifolds
Andrew Dancer
(Oxford)
Abstract:
We investigate quaternionic
(especially hyperkahler) analogues of the
symplectic cut construction. In low dimensions this can
be interpreted as a adding a brane to a hyperkahler manifold.
We investigate quaternionic
(especially hyperkahler) analogues of the
symplectic cut construction. In low dimensions this can
be interpreted as a adding a brane to a hyperkahler manifold.
Posted by: IC
Wednesday, 15 Mar 2006
Black hole partition functions and duality
📍 London
Thomas Mohaupt
(Liverpool)
Correlation functions in integrable spin-chains 1
Michio Jimbo
(Tokyo University)
Abstract:
Please follow this link for details: http://www.city.ac.uk/sems/mathematics/speciallectures.html
Please follow this link for details: http://www.city.ac.uk/sems/mathematics/speciallectures.html
Posted by: CityU
M-theory on the Orbifold (C'2 mod Z_N)
Andre Lukas
(Oxford)
Random matrices with independent entries
Giovanni Cicuta
(Parma)
Abstract:
The algorithm by M.Bauer and O.Golinelli to evaluate the moments of the spectral density of the incident matrix of random graphs is very useful also for other matrix ensembles: real symmetric, real anti-symmetric, real, laplacian, Wishart,... In most cases it may efficiently be performed by computer. The moments thus evaluated presumably will be useful to complement numerical simulations. In the large n limit, they are a transparent way to examine possible n-dependent rescaling then the emergence of universality and the validity of the addition theorem for random matrices.
The algorithm by M.Bauer and O.Golinelli to evaluate the moments of the spectral density of the incident matrix of random graphs is very useful also for other matrix ensembles: real symmetric, real anti-symmetric, real, laplacian, Wishart,... In most cases it may efficiently be performed by computer. The moments thus evaluated presumably will be useful to complement numerical simulations. In the large n limit, they are a transparent way to examine possible n-dependent rescaling then the emergence of universality and the validity of the addition theorem for random matrices.
Posted by: brunel
Thursday, 16 Mar 2006
Intersecting Brane Worlds: a Possible Path from String Theory to Particle Physics
Rodolfo Russo
(QMW)
Abstract:
I will discuss the main features of the string
compactifications with magnetized (or equivalently
intersecting) D-branes and explain why they represent a
very interesting setup for phenomenological
applications. In particular, I will discuss how to use string techniques to systematically derive brane world effective actions for models with magnetized (or equivalently intersecting) D-branes.
I will discuss the main features of the string
compactifications with magnetized (or equivalently
intersecting) D-branes and explain why they represent a
very interesting setup for phenomenological
applications. In particular, I will discuss how to use string techniques to systematically derive brane world effective actions for models with magnetized (or equivalently intersecting) D-branes.
Posted by: QMW
Friday, 17 Mar 2006
Gravity duals of field theory vacua
Marika Taylor
(Amsterdam)
Abstract:
In the first part of the talk we discuss how to construct
geometries sourced by branes carrying general condensates. As an example
we consider fundamental strings carring fermion bilinear condensates.
Dualizing to the D1-D5 system these correspond to the missing geometries
needed to account for all black hole microstates in the fuzzball
conjecture. In the second half of the talk we discuss new results in
extracting field theory data from (asymptotically AdS) geometries. These
methods can be used to show that the D1-D5 geometries do indeed correspond
to R vacua with all the requisite properties.
In the first part of the talk we discuss how to construct
geometries sourced by branes carrying general condensates. As an example
we consider fundamental strings carring fermion bilinear condensates.
Dualizing to the D1-D5 system these correspond to the missing geometries
needed to account for all black hole microstates in the fuzzball
conjecture. In the second half of the talk we discuss new results in
extracting field theory data from (asymptotically AdS) geometries. These
methods can be used to show that the D1-D5 geometries do indeed correspond
to R vacua with all the requisite properties.
Posted by: IC