Intern
Computational Quantum Materials

Many-Body Methods & Numerical Techniques

  • Poles-zeros duality in semi-holographic Mott insulators. Kögel, Thomas; Caddeo, Alessio; Pitters, Amelie; Paoletti, Francesca; Crippa, Lorenzo; Sangiovanni, Giorgio; Meyer, René; Erdmenger, Johanna. In arXiv:2605.20321v2. 2026.
  • Twisted Bilayer Graphene Lifetimes At Integer Fillings: An Analytic Result. Hu, Haoyu; Shao, Yuelin; Crippa, Lorenzo; Călugăru, Dumitru; Sangiovanni, Giorgio; Wehling, Tim; Glazman, Leonid I.; Bernevig, B. Andrei. In arXiv:2604.14303v1. 2026.
  • Effective enhancement of the electron-phonon coupling driven by nonperturbative electronic density fluctuations. Moghadas, Emin; Reitner, Matthias; Wehling, Tim; Sangiovanni, Giorgio; Ciuchi, Sergio; Toschi, Alessandro. In Phys. Rev. Lett. 136, 126502 (2026). 2025.
  • Impact of nonlocal spatial correlations for different lattice geometries. Leusch, Marvin; Toschi, Alessandro; Hausoel, Andreas; Sangiovanni, Giorgio; Rohringer, Georg. In arXiv:2512.14396v1. 2025.
  • Next-generation EDIpack: A Lanczos-based package for quantum impurity models featuring general broken-symmetry phases, flexible bath topologies and multi-platform interoperability. Crippa, Lorenzo; Krivenko, Igor; Giuli, Samuele; Bellomia, Gabriele; Kowalski, Alexander; Petocchi, Francesco; Scazzola, Alberto; Wallerberger, Markus; Mazza, Giacomo; de Medici, Luca; Sangiovanni, Giorgio; Capone, Massimo; Amaricci, Adriano. In SciPost Phys. Codebases 58 (2025). 2025.
  • Probing Green’s Function Zeros by Co-tunneling through Mott Insulators. Lehmann, Carl; Crippa, Lorenzo; Sangiovanni, Giorgio; Budich, Jan Carl. In Phys. Rev. Lett. 135, 106303 (2025). 2025.
  • Entanglement across scales: Quantics tensor trains as a natural framework for renormalization. Rohshap, Stefan; Li, Jheng-Wei; Lorenz, Alena; Hasil, Serap; Held, Karsten; Kauch, Anna; Wallerberger, Markus. In Phys. Rev. Research 7, 043313 (2025). 2025.
  • Phonon fluctuation diagnostics: Origin of charge order in AV\($_3$\)Sb\($_5$\) kagome metals. Enzner, Stefan; Berges, Jan; Schobert, Arne; Oh, Dongjin; Kang, Mingu; Comin, Riccardo; Thomale, Ronny; Wehling, Tim O.; Sante, Domenico Di; Sangiovanni, Giorgio. In arXiv:2504.07883v2. 2025.
  • Dirac points and topological phases in correlated altermagnets. Re, Lorenzo Del. In arXiv:2408.14288v2. 2024.
  • Pomeranchuk instability from electronic correlations in CsTi\($_3$\)Bi\($_5$\) kagome metal. Bigi, Chiara; Dürrnagel, Matteo; Klebl, Lennart; Consiglio, Armando; Pokharel, Ganesh; Bertran, Francois; Févre, Patrick Le; Jaouen, Thomas; Tchouekem, Hulerich C.; Turban, Pascal; Vita, Alessandro De; Miwa, Jill A.; Wells, Justin W.; Oh, Dongjin; Comin, Riccardo; Thomale, Ronny; Zeljkovic, Ilija; Ortiz, Brenden R.; Wilson, Stephen D.; Sangiovanni, Giorgio; Mazzola, Federico; Sante, Domenico Di. In arXiv:2410.22929v1. 2024.
  • Interconnected Renormalization of Hubbard Bands and Green’s Function Zeros in Mott Insulators Induced by Strong Magnetic Fluctuations. Stepanov, Evgeny A.; Chatzieleftheriou, Maria; Wagner, Niklas; Sangiovanni, Giorgio. In arXiv:2402.02814v2. 2024.
  • Non-Perturbative Feats in the Physics of Correlated Antiferromagnets. Reitner, Matthias; Re, Lorenzo Del; Capone, Massimo; Toschi, Alessandro. In arXiv:2411.13417v2. 2024.
  • General Shiba mapping for on-site four-point correlation functions. Eßl, Herbert; Reitner, Matthias; Sangiovanni, Giorgio; Toschi, Alessandro. In Phys. Rev. Research 6, 033061 (2024). 2024.
  • Mott insulators with boundary zeros. Wagner, Niklas; Crippa, Lorenzo; Amaricci, Adriano; Hansmann, Philipp; Klett, Marcel; König, Elio; Schäfer, Thomas; Sante, Domenico Di; Cano, Jennifer; Millis, Andrew; Georges, Antoine; Sangiovanni, Giorgio. In Nature Communication 14, 7531 (2023). 2023.
  • Aberration of the Green’s function estimator in hybridization expansion continuous-time quantum Monte Carlo. Hausoel, Andreas; Wallerberger, Markus; Kaufmann, Josef; Held, Karsten; Sangiovanni, Giorgio. In arXiv:2211.06266v1. 2022.
  • Deep Learning the Functional Renormalization Group. Sante, Domenico Di; Medvidović, Matija; Toschi, Alessandro; Sangiovanni, Giorgio; Franchini, Cesare; Sengupta, Anirvan M.; Millis, Andrew J. In Phys. Rev. Lett. 129, 136402 (2022). 2022.
  • Local vs non-local correlation effects in interacting quantum spin Hall insulators. Crippa, Lorenzo; Amaricci, Adriano; Adler, Severino; Sangiovanni, Giorgio; Capone, Massimo. In arXiv:2110.05364v1. 2021.
  • Observation of tunable single-atom Yu-Shiba-Rusinov states. Odobesko, Artem; Sante, D. Di; Kowalski, A.; Wilfert, S.; Friedrich, F.; Thomale, R.; Sangiovanni, G.; Bode, M. In Phys. Rev. B 102, 174504 (2020). 2020.
  • Attractive effect of a strong electronic repulsion -- the physics of vertex divergences. Reitner, M.; Chalupa, P.; Re, L. Del; Springer, D.; Ciuchi, S.; Sangiovanni, G.; Toschi, A. In Phys. Rev. Lett. 125, 196403 (2020). 2020.
  • Symmetric Improved Estimators for Continuous-time Quantum Monte Carlo. Kaufmann, Josef; Gunacker, Patrik; Kowalski, Alexander; Sangiovanni, Giorgio; Held, Karsten. In Phys. Rev. B 100, 075119 (2019). 2019.
  • Interplay between local response and vertex divergences in many-fermion systems with on-site attraction. Springer, D.; Chalupa, P.; Ciuchi, S.; Sangiovanni, G.; Toschi, A. In Phys. Rev. B 101, 155148 (2020). 2019.
  • State- and superstate-sampling in hybridization-expansion continuous-time quantum Monte Carlo. Kowalski, Alexander; Hausoel, Andreas; Wallerberger, Markus; Gunacker, Patrik; Sangiovanni, Giorgio. In Phys. Rev. B 99, 155112 (2019). 2018.
  • w2dynamics: Local one- and two-particle quantities from dynamical mean field theory. Wallerberger, Markus; Hausoel, Andreas; Gunacker, Patrik; Kowalski, Alexander; Parragh, Nicolaus; Goth, Florian; Held, Karsten; Sangiovanni, Giorgio. In Comput. Phys. Commun. 235, 388-399 (2019). 2018.
  • Electronic properties of type-II Weyl semimetal WTe\($_2$\). A review perspective. Das, P. K.; Sante, D. Di; Cilento, F.; Bigi, C.; Kopic, D.; Soranzio, D.; Sterzi, A.; Krieger, J. A.; Vobornik, I.; Fujii, J.; Okuda, T.; Strocov, V. N.; Breese, M. B. H.; Parmigiani, F.; Rossi, G.; Picozzi, S.; Thomale, R.; Sangiovanni, G.; Cava, R. J.; Panaccione, G. In Electron. Struct. 1, 014003 (2019). 2018.
  • Breakdown of traditional many-body theories for correlated electrons. Gunnarsson, O.; Rohringer, G.; Schäfer, T.; Sangiovanni, G.; Toschi, A. In Phys. Rev. Lett. 119, 056402 (2017). 2017.
  • Three-Dimensional Electronic Structure of type-II Weyl Semimetal WTe\($_2$\). Sante, Domenico Di; Das, Pranab Kumar; Bigi, C.; Ergönenc, Z.; Gürtler, N.; Krieger, J. A.; Schmitt, T.; Ali, M. N.; Rossi, G.; Thomale, R.; Franchini, C.; Picozzi, S.; Fujii, J.; Strocov, V. N.; Sangiovanni, G.; Vobornik, I.; Cava, R. J.; Panaccione, G. In Phys. Rev. Lett. 119, 026403 (2017). 2017.
  • Complementary views on electron spectra: From Fluctuation Diagnostics to real space correlations. Gunnarsson, O.; Merino, J.; Schäfer, T.; Sangiovanni, G.; Rohringer, G.; Toschi, A. In Phys. Rev. B 97, 125134 (2018). 2017.
  • Realistic theory of electronic correlations in nanoscopic systems. Schüler, M.; Barthel, S.; Wehling, T.; Karolak, M.; Valli, A.; Sangiovanni, G. In Eur. Phys. J. Special Topics 226, 2615 (2017). 2017.
  • Parquet decomposition calculations of the electronic self-energy. Gunnarsson, O.; Schäfer, T.; LeBlanc, J. P. F.; Merino, J.; Sangiovanni, G.; Rohringer, G.; Toschi, A. In Phys. Rev. B 93, 245102 (2016). 2016.
  • Non-perturbative landscape of the Mott-Hubbard transition: Multiple divergence lines around the critical endpoint. Schäfer, T.; Ciuchi, S.; Wallerberger, M.; Thunström, P.; Gunnarsson, O.; Sangiovanni, G.; Rohringer, G.; Toschi, A. In Phys. Rev. B 94, 235108 (2016). 2016.
  • Worm Improved Estimators in Continuous-time Quantum Monte Carlo. Gunacker, Patrik; Wallerberger, Markus; Ribic, Tin; Hausoel, Andreas; Sangiovanni, Giorgio; Held, Karsten. In Phys. Rev. B 94, 125153 (2016). 2016.
  • Continuous-time Quantum Monte Carlo using Worm Sampling. Gunacker, Patrik; Wallerberger, Markus; Gull, Emanuel; Hausoel, Andreas; Sangiovanni, Giorgio; Held, Karsten. In Phys. Rev. B 92, 155102 (2015). 2015.
  • Fluctuation diagnostics of the electron self-energy: Origin of the pseudogap physics. Gunnarsson, O.; Schäfer, T.; LeBlanc, J. P. F.; Gull, E.; Merino, J.; Sangiovanni, G.; Rohringer, G.; Toschi, A. In Phys. Rev. Lett. 114, 236402 (2015). 2014.
  • Dynamical vertex approximation in its parquet implementation: application to Hubbard nano-rings. Valli, A.; Schäfer, T.; Thunström, P.; Rohringer, G.; Andergassen, S.; Sangiovanni, G.; Held, K.; Toschi, A. In Phys. Rev. B 91, 115115 (2015). 2014.
  • Divergent Precursors of the Mott-Hubbard Transition at the Two-Particle Level. Schäfer, T.; Rohringer, G.; Gunnarsson, O.; Ciuchi, S.; Sangiovanni, G.; Toschi, A. In Phys. Rev. Lett. 110, 246405 (2013). 2013.
  • Conserved quantities of SU(2)-invariant interactions for correlated fermions and the advantages for quantum Monte Carlo simulations. Parragh, Nicolaus; Toschi, Alessandro; Held, Karsten; Sangiovanni, Giorgio. In Phys. Rev. B 86, 155158 (2012). 2012.
  • Fluctuation driven topological Hund insulators. Budich, Jan Carl; Trauzettel, Björn; Sangiovanni, Giorgio. In Phys. Rev. B 87, 235104 (2013). 2012.
  • Cluster-size dependence in cellular dynamical mean-field theory. Sakai, Shiro; Sangiovanni, Giorgio; Civelli, Marcello; Motome, Yukitoshi; Held, Karsten; Imada, Masatoshi. In Physical Review B 85, 035102 (2012). 2011.
  • Quantum dynamical screening of the local magnetic moment in Fe-based superconductors. Toschi, A.; Arita, R.; Hansmann, P.; Sangiovanni, G.; Held, K. In Phys. Rev. B 86, 064411 (2012). 2011.
  • Dynamical vertex approximation for nanoscopic systems. Valli, Angelo; Sangiovanni, Giorgio; Gunnarsson, Olle; Toschi, Alessandro; Held, Karsten. In Phys. Rev. Lett. 104, 246402 (2010). 2010.
  • Analytical continuation of imaginary axis data for optical conductivity. Gunnarsson, O.; Haverkort, M. W.; Sangiovanni, G. In Phys. Rev. B 82, 165125 (2010). 2010.
  • Analytical continuation of imaginary axis data using maximum entropy. Gunnarsson, O.; Haverkort, M. W.; Sangiovanni, G. In Phys. Rev. B 81, 155107 (2010). 2010.
  • Fourier transformation and response functions. Gunnarsson, O.; Sangiovanni, G.; Valli, A.; Haverkort, M. W. In Phys. Rev. B 82, 233104 (2010). 2010.
  • Sum-rules and bath-parametrization for quantum cluster theories. Koch, Erik; Sangiovanni, Giorgio; Gunnarsson, Olle. In Phys. Rev. B 78, 115102 (2008). 2008.
  • Electron-phonon interaction and antiferromagnetic correlations. Sangiovanni, G.; Gunnarsson, O.; Koch, E.; Castellani, C.; Capone, M. In Phys. Rev. Lett. 97, 046404 (2006). 2006.
  • Sum rules and vertex corrections for electron-phonon interactions. Rösch, O.; Sangiovanni, G.; Gunnarsson, O. In Phys. Rev. B 75, 035119 (2007). 2006.
  • Phonon softening and dispersion in the 1D Holstein model of spinless fermions. Creffield, C. E.; Sangiovanni, G.; Capone, M. In Eur. Phys. J. B 44, 175 (2005). 2005.