Content
PhD Theses
2025
Changkai Zhang
Tensor Network Methods and Artificial Intelligence Study of the Hubbard Model
Dissertation, November 2025 [PDF]
Tensor Network Methods and Artificial Intelligence Study of the Hubbard Model
Dissertation, November 2025 [PDF]
Benedikt Schneider
Diagrammatic Approach to Frustrated Spin Systems
Dissertation, November 2025 [PDF]
Diagrammatic Approach to Frustrated Spin Systems
Dissertation, November 2025 [PDF]
Marc Ritter
Connecting diagrams with tensor networks
Novel algorithms for many-body quantum systems
Dissertation, June 23rd, 2025 [PDF]
Connecting diagrams with tensor networks
Novel algorithms for many-body quantum systems
Dissertation, June 23rd, 2025 [PDF]
Nepomuk Ritz
Dynamic response functions of strongly correlated electrons
Dissertation, April 2025 [PDF]
Dynamic response functions of strongly correlated electrons
Dissertation, April 2025 [PDF]
Marcel Gievers
Functional approaches to Fermi polarons in cold atomic gases and solid-state systems
Dissertation, March 2025 [PDF]
Functional approaches to Fermi polarons in cold atomic gases and solid-state systems
Dissertation, March 2025 [PDF]
Anxiang Ge
Correlator-based approaches in real and imaginary frequencies
Dissertation, February 2025 [PDF]
Correlator-based approaches in real and imaginary frequencies
Dissertation, February 2025 [PDF]
2024
Andreas Gleis
Quantum criticality in heavy fermion systems: a real-frequency numerical perspective
Dissertation, May 2024 [PDF]
Quantum criticality in heavy fermion systems: a real-frequency numerical perspective
Dissertation, May 2024 [PDF]
Johannes Halbinger
Imaginary- and Real-Frequency Correlation Functions in Condensed Matter Physics: General Properties and Applications
Dissertation, March 2024 [PDF]
Imaginary- and Real-Frequency Correlation Functions in Condensed Matter Physics: General Properties and Applications
Dissertation, March 2024 [PDF]
2022
Jheng-Wei Li
Tensor network methods for low-dimensional quantum systems
Dissertation, August 2022 [PDF]
Tensor network methods for low-dimensional quantum systems
Dissertation, August 2022 [PDF]
2021
Elias Walter
Real-frequency dynamics of quantum impurity models studied with fRG, NRG, CFT
Dissertation, December 2021 [PDF]
Real-frequency dynamics of quantum impurity models studied with fRG, NRG, CFT
Dissertation, December 2021 [PDF]
2020
Lukas Weidinger
Finite-ranged interactions and multiband effects in quantum point contacts
Dissertation, December 2020 [PDF]
Finite-ranged interactions and multiband effects in quantum point contacts
Dissertation, December 2020 [PDF]
2019
Fabian Kugler
Renormalization group approaches to strongly correlated electron systems
Dissertation, October 2019 [PDF]
Renormalization group approaches to strongly correlated electron systems
Dissertation, October 2019 [PDF]
Dimitri Pimenov
Beyond the Landau-Ginzburg-Wilson paradigm: Analytical studies of non-standard quantum criticality
Dissertation, July 2019 [PDF]
Beyond the Landau-Ginzburg-Wilson paradigm: Analytical studies of non-standard quantum criticality
Dissertation, July 2019 [PDF]
Katharina Stadler
A model study of strong correlations in Hund metals The Numerical Renormalization Group as efficient multi-band impurity solver for Dynamical Mean-Field Theory
Dissertation, January 2019 [PDF]
A model study of strong correlations in Hund metals The Numerical Renormalization Group as efficient multi-band impurity solver for Dynamical Mean-Field Theory
Dissertation, January 2019 [PDF]
2017
Dennis Schimmel
Transport through inhomogeneous interacting low-dimensional systems
Dissertation, November 2017 [PDF]
Transport through inhomogeneous interacting low-dimensional systems
Dissertation, November 2017 [PDF]
Benedikt Bruognolo
Tensor network techniques for strongly correlated systems: Simulating the quantum many-body wavefunction in zero, one, and two dimensions
Dissertation, July 2017 [PDF]
Tensor network techniques for strongly correlated systems: Simulating the quantum many-body wavefunction in zero, one, and two dimensions
Dissertation, July 2017 [PDF]
Frauke Schwarz
Nonequilibrium Steady-State Transport in Quantum Impurity Models
Dissertation, October 2017 [PDF]
Nonequilibrium Steady-State Transport in Quantum Impurity Models
Dissertation, October 2017 [PDF]
2014
Jan Heyder
The 0.7 anomaly in quantum point contacts; a microscopic model for the first conductance step
Dissertation, December 2014 [PDF]
The 0.7 anomaly in quantum point contacts; a microscopic model for the first conductance step
Dissertation, December 2014 [PDF]
Florian Bauer
Microscopic Origin of the 0.7-Anomaly in Quantum Point Contacts
Dissertation, July 2014 [PDF]
Microscopic Origin of the 0.7-Anomaly in Quantum Point Contacts
Dissertation, July 2014 [PDF]
Markus Hanl
Optical and transport properties of quantum impurity models – an NRG study of generic models and real physical systems
Dissertation, June 2014 [PDF]
Optical and transport properties of quantum impurity models – an NRG study of generic models and real physical systems
Dissertation, June 2014 [PDF]
2013
Maximilian Treiber
Dephasing in disordered systems at low temperatures
Dissertation, April 2013 [PDF]
Dephasing in disordered systems at low temperatures
Dissertation, April 2013 [PDF]
2012
Cheng Guo
Using Density Matrix Renormalization Group to Study Open Quantum Systems
Dissertation, October 2012 [PDF]
Using Density Matrix Renormalization Group to Study Open Quantum Systems
Dissertation, October 2012 [PDF]
2011
A. Holzner
DMRG studies of Chebychev-expanded spectral functions and quantum impurity models
Dissertation, October 2011 [PDF]
DMRG studies of Chebychev-expanded spectral functions and quantum impurity models
Dissertation, October 2011 [PDF]
Wolfang Münder
Matrix product state calculations for one-dimensional quantum chains and quantum impurity models
Dissertation, August 2011 [PDF]
Matrix product state calculations for one-dimensional quantum chains and quantum impurity models
Dissertation, August 2011 [PDF]
2009
Peter Fritsch
Non-Equilibrium Scaling Analysis of Quantum Dots in the Kondo Regime
Dissertation, März 2009 [PDF]
Non-Equilibrium Scaling Analysis of Quantum Dots in the Kondo Regime
Dissertation, März 2009 [PDF]
2008
Benjamin Simon Abel
Macroscopic superposition states and decoherence by quantum telegraph noise
Dissertation, December 2008 [PDF]
Macroscopic superposition states and decoherence by quantum telegraph noise
Dissertation, December 2008 [PDF]
Hamed Saberi
Matrix-product states for strongly correlated systems and quantum information processing
Dissertation, December 2008 [PDF]
Matrix-product states for strongly correlated systems and quantum information processing
Dissertation, December 2008 [PDF]
Ioana Serban
Nonlinearities in the quantum measurement process of superconducting qubits
Dissertation, Mai 2008 [PDF]
Nonlinearities in the quantum measurement process of superconducting qubits
Dissertation, Mai 2008 [PDF]
Theresa Hecht
Numerical Renormalization Group studies of Correlation effects in Phase Coherent Transport through Quantum Dots
Dissertation, May 2008 [PDF]
Numerical Renormalization Group studies of Correlation effects in Phase Coherent Transport through Quantum Dots
Dissertation, May 2008 [PDF]
2005
Udo Hartmann
Decoherence and Measurement of Charge Qubits in Double Quantum Dots
Dissertation, August 2005 [PDF]
Decoherence and Measurement of Charge Qubits in Double Quantum Dots
Dissertation, August 2005 [PDF]
Markus Janos Storcz
Decoherence, control, and encoding of coupled solid-state quantum bits
Dissertation, August 2005 [PDF]
Decoherence, control, and encoding of coupled solid-state quantum bits
Dissertation, August 2005 [PDF]
Corinna Kollath
The adaptive time-dependent density-matrix renormalization-group method: development and applications
Dissertation, Juli 2005 [PDF]
The adaptive time-dependent density-matrix renormalization-group method: development and applications
Dissertation, Juli 2005 [PDF]
Henryk Peter Gregor Gutmann
Description and control of decoherence in quantum bit systems
Dissertation, June 2005 [PDF]
Description and control of decoherence in quantum bit systems
Dissertation, June 2005 [PDF]
2004
Dominique Gobert
Applications of the density-matrix Renormalization group to mesoscopic Phenomena
Dissertation, 2004 [PDF]
Applications of the density-matrix Renormalization group to mesoscopic Phenomena
Dissertation, 2004 [PDF]
Michael Sindel
Numerical Renormalization Group studies of Quantum Impurity Models in the Strong Coupling Limit
Ph.D. thesis / Dissertation, October 2004 [PDF]
Numerical Renormalization Group studies of Quantum Impurity Models in the Strong Coupling Limit
Ph.D. thesis / Dissertation, October 2004 [PDF]
Robert Dahlke
Numerical calculations for electronic transport through molecular systems
Dissertation, April 2004 [PDF]
Numerical calculations for electronic transport through molecular systems
Dissertation, April 2004 [PDF]
2003
Silvia Kleff
Transport theory of ferromagnetic nanograins and Dephasing in qubits with environmental resonances
Dissertation (2003)
Transport theory of ferromagnetic nanograins and Dephasing in qubits with environmental resonances
Dissertation (2003)
Frank K. Wilhelm
Quantum coherence and -control in mesoscopic systems
Dissertation, August 2003 [PDF]
Quantum coherence and -control in mesoscopic systems
Dissertation, August 2003 [PDF]
1995
Prof. Dr. Jan von Delft
2-Channel Kondo Scaling in Metal Nanoconstrictions — a Conformal Field Theory Calculation of Scaling Function
Dissertation, August, 1995 [PDF]
2-Channel Kondo Scaling in Metal Nanoconstrictions — a Conformal Field Theory Calculation of Scaling Function
Dissertation, August, 1995 [PDF]