Found 9 result(s)

07.12.2020 (Monday)

2124' style='color:#f0ad4e'>

Lonti 2020 : D Branes and Boundary States

Regular Seminar Bogdan au:Stefanski'><span class='hl'>Bogdan</span> Stefanski (City)

at:
11:30 City U.
room Online
abstract:

This is the live session included as part of the LonTI lecture on Conformal blocks in two dimensions. Please register at https://lonti.weebly.com/registration.html to receive joining instructions for this live session which will be held via Zoom. D-branes are a remarkable set of soliton-like objects in string theory which have played a critical role in many areas of string theory. Despite being non-perturbative, they can be understood exactly using world-sheet methods through the boundary state formalism. In this lecture, I introduce the notion of a boundary state and show how to use it to extract physical information about D-branes and the open strings that live on them.

30.11.2020 (Monday)

2122' style='color:#f0ad4e'>

LonTI 2020: D-branes and boundary states

Regular Seminar Bogdan au:Stefanski'><span class='hl'>Bogdan</span> Stefanski (City)

at:
14:00 City U.
room Youtube
abstract:

D-branes are a remarkable set of soliton-like objects in string theory which have played a critical role in many areas of string theory. Despite being non-perturbative, they can be understood exactly using world-sheet methods through the boundary state formalism. In this lecture, I introduce the notion of a boundary state and show how to use it to extract physical information about D-branes and the open strings that live on them.

28.01.2015 (Wednesday)

1399' style='color:#f0ad4e'>

Integrability and the Conformal Field Theory of the Higgs branch

Regular Seminar Bogdan au:Stefanski'><span class='hl'>Bogdan</span> Stefanski (City University)

at:
13:15 KCL
room G.01
abstract:

I will review how integrability can be used to understand the spectral problem (including massless modes) of Type IIB string theory on AdS3 x S3 x T4 with R-R flux. I will then show how integrability emerges in the dual CFT2. This provides arguably the first non-BPS test of the planar AdS3/CFT2 correspondence in the literature and gives strong evidence in identifying particular points in the moduli space of the dual theories.

06.10.2009 (Tuesday)

787' style='color:#f0ad4e'>

The gauge/string correspondence

Regular Seminar Bogdan au:Stefanski'><span class='hl'>Bogdan</span> Stefanski (City University London)

at:
15:00 City U.
room AG11
abstract:

I will review the gauge/string correspondence, with particular emphasis on recent exact results based on integrable techniques.

03.02.2009 (Tuesday)

702' style='color:#f0ad4e'>

An Introduction to ADS/CFT correspondence

Regular Seminar Bogdan au:Stefanski'><span class='hl'>Bogdan</span> Stefanski (City University London)

at:
15:00 City U.
room C343
abstract:

We give a brief introduction to recent advances in the AdS/CFT correspondence with particular emphasis on the role integrable structures enter this duality.

15.09.2008 (Monday)

03.05.2006 (Wednesday)

357' style='color:#f0ad4e'>

Langlands Journal Club

String Theory & Geometry Seminar Bogdan au:Stefanski'><span class='hl'>Bogdan</span> Stefanski (Imperial)

at:
13:00 IC
room Huxley 503
abstract:

03.03.2005 (Thursday)

14.06.2004 (Monday)