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\begin{document}

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\section*{Andreas Karch}

\begin{itemize}%
\item \href{http://faculty.washington.edu/akarch/}{webpage}

\end{itemize}
\hypertarget{selected_writings}{}\subsection*{{Selected writings}}\label{selected_writings}

On [[geometric engineering of quantum field theory]]:

\begin{itemize}%
\item [[Andreas Karch]], \emph{Field Theory Dynamics from Branes in String Theory}, PhD thesis (1998) \href{http://edoc.hu-berlin.de/dissertationen/physik/karch-andreas/PDF/Karch.pdf}{pdf}

\end{itemize}
On [[geometric engineering of QFT|geometric engineering]] of [[flavour physics]] in [[intersecting D-brane models]] ([[AdS/QCD]]):

\begin{itemize}%
\item [[Andreas Karch]], [[Emanuel Katz]], \emph{Adding flavor to AdS/CFT}, JHEP 0206:043, 2002 (\href{https://arxiv.org/abs/hep-th/0205236}{arxiv:hep-th/0205236})

\end{itemize}
On [[confinement]] via [[AdS-QCD]]:

\begin{itemize}%
\item [[Andreas Karch]], [[Emanuel Katz]], Dam T. Son, Mikhail A. Stephanov, \emph{Linear Confinement and AdS/QCD}, Phys. Rev. D74:015005, 2006 (\href{https://arxiv.org/abs/hep-ph/0602229}{arXiv:hep-ph/0602229})

\end{itemize}
On [[Seiberg duality]] for [[gauge group]]s which are [[exceptional Lie group]]s:

\begin{itemize}%
\item [[Jacques Distler]], [[Andreas Karch]], \emph{$N=1$ Dualities for Exceptional Gauge Groups and Quantum Global Symmetries} (\href{http://arxiv.org/abs/hep-th/9611088}{arXiv:hep-th/9611088})

\end{itemize}
On [[M-theory on S1/G\_HW times H/G\_ADE]]:

\begin{itemize}%
\item [[Ilka Brunner]], [[Andreas Karch]], \emph{Branes at Orbifolds versus Hanany Witten in Six Dimensions}, JHEP 9803:003, 1998 (\href{https://arxiv.org/abs/hep-th/9712143}{arXiv:hep-th/9712143})

\end{itemize}
On [[mirror symmetry]]:

\begin{itemize}%
\item [[Mina Aganagic]], [[Kentaro Hori]], [[Andreas Karch]], [[David Tong]], \emph{Mirror Symmetry in 2+1 and 1+1 Dimensions}, JHEP 0107:022,2001 (\href{http://arxiv.org/abs/hep-th/0105075}{arXiv:hep-th/0105075})

\end{itemize}
On [[NS5-branes]] and [[orientifolds]] with [[RR-field tadpole cancellation]]:

\begin{itemize}%
\item Bo Feng, [[Yang-Hui He]], [[Andreas Karch]], [[Angel Uranga]], \emph{Orientifold dual for stuck NS5 branes}, JHEP 0106:065, 2001 (\href{https://arxiv.org/abs/hep-th/0103177}{arXiv:hep-th/0103177})

\end{itemize}
On [[AdS-CFT in condensed matter physics]]:

[[Andreas Karch]] writes \href{http://www.math.columbia.edu/~woit/wordpress/?p=9426#comment-226376}{here}:

\begin{quote}%
These anomalous transport coefficients have first been calculated in AdS/CFT. The relevant references are 8, 9 and 10 in the Son/Surowka paper. In the AdS/CFT calculations these particular transport coefficients only arise due to Chern-Simons terms, which are the bulk manifestation of the field theory anomalies. At that point it was obvious to many of us that there should be a purely field theory based calculation, only using anomalies, that can derive these terms. Son and Surowka knew about this. They were sitting next door to me when they started these calculations. Many of us tried to find these purely field theory based arguments and failed. Son and Surowka succeeded.

If you ask anyone serious about applying AdS/CFT to strongly coupled field theories why they are doing this, they would (hopefully) give you an answer along the lines of ``AdS/CFT provides us with toy models of strongly coupled dynamics. While the field theories that have classical AdS duals are rather special, we can still learn important qualitative insights and find new ways to think about strongly coupled field theories.'' Once AdS/CFT stumbles on a new phenomenon in these solvable toy models, we want to go back to see whether we can understand it without the crutch of having to rely on AdS/CFT. Any result that only applies in theories with holographic dual is somewhat limited in its applications. In this sense, anomalous transport is a poster child for what AdS/CFT can be used for: a new phenomenon that had been missed completely by people studying field theory gets uncovered by studying these toy models. Once we knew what to look for, a purely field theoretic argument was found that made the AdS/CFT derivation obsolete.

This is applied AdS/CFT as it should be. Solvable examples exhibit new connections which then can be proven to be correct more generally and are not limited to the toy models that were used to uncover them.


\end{quote}
category: people



\end{document}