in the theory division of the MPI for Physics in Munich
Max-Planck-Institut für Physik
(Werner-Heisenberg-Institut)
Föhringer Ring 6
80805 München
Germany
Phone:
Fax:
Office:
+49-(0)89-32354-413
+49-(0)89-32354-304
2nd floor, Room 304
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Research group leader (W2) in the theory division of the MPI for Physics in Munich |
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| Prof. Dr. Johanna Erdmenger Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) Föhringer Ring 6 80805 München Germany |
email: Phone: Fax: Office: |
jke@mppmu.mpg.de +49-(0)89-32354-413 +49-(0)89-32354-304 2nd floor, Room 304 |
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| Click here to see my CV. |
I am interested in string theory and quantum field theory. In particular, I focus on the gauge theory/string theory correspondence and applications to particle physics, condensed matter physics and cosmology, as well as on conformal symmetry, renormalization, supergravity, and statistical mechanics.
Together with my group we look at new relations between string theory and elementary particle physics and also condensed matter physics, in view of bringing string theory closer to experimental tests. A particularly interesting avenue in this direction are gauge/gravity dualities in generalization of the AdS/CFT correspondence, which allow to map strong-coupling problems in quantum field theory to weakly coupled problems in classical gravity.
Recently our group studied gauge/gravity dual realizations of superfluids and superconductors. We constructed a gravity dual for a holographic superconductor for which the dual field theory is explicitly known. We also considered fermionic fluctuations and found the Fermi surface for a strongly coupled p-wave superconductor. It corresponds to excitations localized near the nodes of the gap. Moreover, we use gauge/gravity duality for deriving universal relations for high-Tc superconductors. A further current project is to study magnetic impurities coupled to a strongly correlated system using gauge/gravity duality.
We also study formal aspects of the AdS/CFT correspondence, for instance the duality between O(N) vector models and higher spin theories in AdS (Anti-de Sitter) space.
An important result which I obtained with members of my research group together with Nick Evans of the University of Southampton is the first gravity dual description of chiral symmetry breaking by a quark condensate. This result, which also involved the associated Goldstone boson, was obtained by embedding a D7 brane in a suitable ten-dimensional gravity background.
In 2007 with Jeong-Hyuck Park and Rene Meyer I have obtained a new matrix model in a time-dependent background which models the very early universe just after the big bang. This model describes how the originally strongly fluctuating geometry expected to be present near the big bang turns into a smooth geometry such as the one we observe today. This result has appeared in Physical Review Letters.
For a list of most of my scientific articles, please follow this link to INSPIRE.
Together with Martin Ammon I have written a book introducing Gauge/Gravity Duality and its applications. The book appeared in spring 2015 with Cambridge University Press. Its title is Gauge/Gravity Duality: Foundations and Applications.
Recently, I edited a book on string cosmology.
| Selected talk: | "Flavour and Mesons in the AdS/CFT correspondence" |
| given at a Workshop in Frascati, September 2008, view as PDF »» |
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