Martin Ganahl

Research Interests

I'm a condensed matter physicist working on strongly correlated quantum systems on the lattice and in the continuum, using
numerical tools like tensor network methods. In particular, I'm interested in out of equilibrium dynamics of low dimensional quantum systems, like e.g. spin chains or interacting impurities coupled to fermionic or bosonic reservoirs.
I have also a strong interest in tensor networks for continuous quantum field theories, where I develop methods for ground state
and excited state optimization.

Recent Publications

• Martin Ganahl, Julian Rincon, Guifre Vidal Continuous Matrix Product States for Quantum Fields: an Energy Minimization Algorithm Phys. Rev. Lett. 118, 220402 (2017) arXiv: 1611.03779
• Georg W. Winkler, Martin Ganahl, Dirk Schuricht, Hans Gerd Evertz, Sabine Andergassen Interaction effects in a microscopic quantum wire model with strong spin-orbit interaction New Journal of Physics 19, 063009 (2017) arXiv: 1701.03793
• Antonius Dorda, Martin Ganahl, Sabine Andergassen, Wolfgang von der Linden, Enrico Arrigoni Thermoelectric response of a correlated impurity in the nonequilibrium Kondo regime Phys. Rev. B 94, 245125 (2016) arXiv: 1608.05714
• Rogier Vlijm, Martin Ganahl, Davide Fioretto, Michael Brockmann, Masudul Haque, Hans Gerd Evertz, Jean-Sébastien Caux Quasi-soliton scattering in quantum spin chains, Phys. Rev. B 92, 214427
• Martin Ganahl, Markus Aichhorn, Patrik Thunström, Karsten Held, Hans Gerd Evertz, Frank Verstraete Efficient DMFT impurity solver using real-time dynamics with Matrix Product States Phys. Rev. B 92, 155132 (2015), arXiv: 1405.6728
• Antonius Dorda, Martin Ganahl, Hans Gerd Evertz, Wolfgang von der Linden, and Enrico Arrigoni, Auxiliary master equation approach within matrix product states: Spectral properties of the nonequilibrium Anderson impurity model, Phys. Rev. B 92, 125145
• Julián Rincón, Martin Ganahl, and Guifre Vidal Lieb-Liniger model with exponentially decaying interactions: A continuous matrix product state study, Phys. Rev. B 92, 115107
• V. Zauner, M. Ganahl, H. G. Evertz, T. Nishino Time Evolution within a Comoving Window: Scaling of signal fronts and magnetization plateaus after a local quench in quantum spin chains arXiv: 1207.0862 to be published in Journal of Physics: Condensed Matter:JPCM-104759.R1, arXiv: 1207.0862
• Martin Nuss, Martin Ganahl, Enrico Arrigoni, Wolfgang von der Linden, Hans Gerd Evertz Nonequilibrium, spatio-temporal formation of the Kondo screening-cloud on a lattice Phys. Rev. B 91, 085127 (2015) , arXiv: 1409.0646
• Martin Ganahl, Patrik Thunström, Frank Verstraete, Karsten Held, Hans Gerd Evertz Chebyshev expansion for Impurity Models using Matrix Product States Phys. Rev. B 90, 045144 (2014), arXiv: 1403.1209
• Michael Knap, Charles J. M. Mathy, Martin Ganahl, Mikhail B. Zvonarev, Eugene Demler Quantum Flutter: Signatures and Robustness Phys. Rev. Lett. 112, 015302 (2014) ,arXiv: 1303.3583
• Martin Nuss, Martin Ganahl, Hans Gerd Evertz, Enrico Arrigoni, Wolfgang von der Linden Steady-state and quench dependent relaxation of a quantum dot coupled to one-dimensional leads Phys. Rev. B 88, 045132 (2013) , arXiv: 1301.3068
• Martin Nuss, Christoph Heil, Martin Ganahl, Michael Knap, Hans Gerd Evertz, Enrico Arrigoni, Wolfgang von der Linden Steady-state spectra, current and stability diagram of a quantum dot: a non-equilibrium Variational Cluster Approach Phys. Rev. B 86, 245119 (2012) , arXiv: 1207.5641
• Michael Knap, Erez Berg, Martin Ganahl, Eugene Demler Clustered Wigner crystal phases of cold polar molecules in arrays of one-dimensional tubes Phys. Rev. B 86, 064501 (2012), arXiv: 1112.5662
• Martin Ganahl, Elias Rabel, Fabian H. L. Essler, Hans Gerd Evertz Observing complex bound states in the spin-1/2 Heisenberg XXZ chain using local quantum quenches Phys. Rev. Lett. 108, 077206 (2012), arXiv: 1112.3355
• M. Ganahl, M. Haque, H.G. Evertz Quantum Bowling: Particle-hole transmutation in one-dimensional strongly interacting lattice models

Seminars

• Continuous Matrix Product States for Non-relativistic Quantum Field Theories Institute for Science and Technology, Klosterneuburg, Austria
• Matrix Product States and many-body physics Quantum Information workshop in Benasque, Spain.
• Variational Energy Minimization for Continuous Space Matrix Product States University of Technology Graz, Austria
• Variational Energy Minimization for Continuous Matrix Product States Max Planck Institute for Quantum Optics, Garching, Germany
• Introduction to Continuous Matrix Product States Stony Brook: Third Annual Summer School: Simons Collaboration on the Many Electron Problem
• Matrix Product States Based Impurity Solvers for Dynamical Mean Field Theory, CORPES converence, Paris
• Impurity Solver for Dynamical Mean Field Theory using Matrix Product States, APS March Meeting, San Antonio
• The continuum limit of Matrix Product States: Applications to non-homogeneous, non-relativistic field theories in the thermodynamic limit University of Technology Graz