Notes
Here, I collect various introductory notes, publications and talk transcripts. I hope they are useful.
Expository material
Physics
 "BulkBoundary Correspondence for NonHermitian Hamiltonians via Green Functions,"
H.G. Z., Gil Refael and Bernd Rosenow. Article, Phys. Rev. Lett. 126, 216407 (2021), arxiv:1901.11241.
 "Exponentially growing bulk Green functions as signature of nontrivial nonHermitian winding number in one dimension,"
H.G. Z. and Bernd Rosenow.
Article, Phys. Rev. B 103, 195157 (2021), arxiv:2007.07026.
 "Voigt Exceptional Points in an Anisotropic ZnOBased Planar Microcavity: SquareRoot Topology, Polarization Vortices, and Circularity,"
Steffen Richter, H.G. Z., Jesús ZúñigaPérez, Evgeny Krüger, Christiane Deparis, Lukas Trefflich, Chris Sturm, Bernd Rosenow, Marius Grundmann, and Rüdiger SchmidtGrund.
Article, Phys. Rev. Lett. 123, 227401 (2019).
 "Evolution of the transmission phase through a Coulombblockaded Majorana wire,"
Casper Drukier, H.G. Z., Bernd Rosenow, Ady Stern and Yuval Oreg.
Article, Phys. Rev. B 98, 161401(R) (2018), arxiv:1806.01399.
 "Topological Magnetoelectric Effect: Nonlinear TimeReversalSymmetric Response, Witten Effect, and HalfInteger Quantum Hall Effect,"
H.G. Z. and Bernd Rosenow.
Feature Article,
Phys. Status Solidi B 257, 1900698 (2020),
arxiv:2004.12840.

"Timereversalsymmetric topological magnetoelectric effect in threedimensional topological insulators,"
H.G. Z. and Bernd Rosenow.
Article,
Phys. Rev. B 96, 201112(R) (2017),
arxiv:1705.02217.
 "Phase Transitions in Holographic Superconductors of Type II."
Talk for the seminar "Holographic Methods in Condensed Matter Physics", January 2015. [pdf]

"Cancellation of quantum anomalies and bosonization of threedimensional timereversal symmetric topological insulators,"
H.G. Z. and Bernd Rosenow.
Article,
Phys. Rev. B 88, 085105 (2013),
arxiv:1303.2644.
Mathematics