News

Welcome to our blog. Browse and filter through all our posts using the options below.

19 to 24 of 31

12APR 2021
publication
Control of the metal-insulator transition in NdNiO3 thin films through the interplay between structural and electronic properties
Y. E. Suyolcu, K. Fürsich, M. Hepting, Z. Zhong, Y. Lu, Y. Wang, G. Christiani, G. Logvenov, P. Hansmann, M. Minola, B. Keimer, P. A. van Aken, E. Benckiser Heteroepitaxy offers a new type of control mechanism for the crystal structure, the electronic correlations, and thus the functional properties of transition-metal oxides. Here, we combine […]
Read more about Control of the metal-insulator transition in NdNiO3 thin films through the interplay between structural and electronic properties
24MAR 2021
Allgemein
Quantum Showdown: Competing Methods of Solving Quantum Systems Put to the Test
A many-method study of the Hubbard model demonstrates how the field of computational quantum physics is evolving to be more collaborative.
Read more about Quantum Showdown: Competing Methods of Solving Quantum Systems Put to the Test
23MAR 2021
publication
Tracking the Footprints of Spin Fluctuations: A Multi-Method, Multi-Messenger Study of the Two-Dimensional Hubbard Model
Thomas Schäfer, Nils Wentzell, Fedor Šimkovic IV, Yuan-Yao He, Cornelia Hille, Marcel Klett, Christian J. Eckhardt, Behnam Arzhang, Viktor Harkov, François-Marie Le Régent, Alfred Kirsch, Yan Wang, Aaram J. Kim, Evgeny Kozik, Evgeny A. Stepanov, Anna Kauch, Sabine Andergassen, Philipp Hansmann, Daniel Rohe, Yuri M. Vilk, James P. F. LeBlanc, Shiwei Zhang, A.-M. S. Tremblay, Michel Ferrero, Olivier Parcollet, Antoine Georges The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard […]Thomas Schäfer, Nils Wentzell, Fedor Šimkovic IV, Yuan-Yao He, Cornelia Hille, Marcel Klett, Christian J. Eckhardt, Behnam Arzhang, Viktor Harkov, François-Marie Le Régent, Alfred Kirsch, Yan Wang, Aaram J. Kim, Evgeny Kozik, Evgeny A. Stepanov, Anna Kauch, Sabine Andergassen, Philipp Hansmann, Daniel Rohe, Yuri M. Vilk, James P. F. LeBlanc, Shiwei Zhang, A.-M. S. Tremblay, Michel Ferrero, Olivier Parcollet, Antoine Georges The Hubbard model represents the fundamental model for interacting quantum systems and electronic correlations. Using the two-dimensional half-filled Hubbard […]
Read more about Tracking the Footprints of Spin Fluctuations: A Multi-Method, Multi-Messenger Study of the Two-Dimensional Hubbard Model
10MAR 2021
Allgemein
Tree Tensor-Network Real-Time Multiorbital Impurity Solver: Spin-Orbit Coupling and Correlation Functions in Sr2RuO4
X. Cao, Y. Lu, P. Hansmann, M. W. Haverkort We present a tree tensor-network impurity solver suited for general multiorbital systems. The network is constructed to efficiently capture the entanglement structure and symmetry of an impurity problem. The solver works directly on the real-time/frequency axis and generates spectral functions with energy-independent resolution on the order […]
Read more about Tree Tensor-Network Real-Time Multiorbital Impurity Solver: Spin-Orbit Coupling and Correlation Functions in Sr2RuO4
10MAR 2021
Allgemein
Mott insulating states with competing orders in the triangular lattice Hubbard model
Alexander Wietek, Riccardo Rossi, Fedor Šimkovic IV, Marcel Klett, Philipp Hansmann, Michel Ferrero, E. Miles Stoudenmire, Thomas Schäfer, Antoine Georges The physics of the triangular lattice Hubbard model exhibits a rich phenomenology, ranging from a metal-insulator transition, intriguing thermodynamic behavior, and a putative spin liquid phase at intermediate coupling, ultimately becoming a magnetic insulator at […]Alexander Wietek, Riccardo Rossi, Fedor Šimkovic IV, Marcel Klett, Philipp Hansmann, Michel Ferrero, E. Miles Stoudenmire, Thomas Schäfer, Antoine Georges The physics of the triangular lattice Hubbard model exhibits a rich phenomenology, ranging from a metal-insulator transition, intriguing thermodynamic behavior, and a putative spin liquid phase at intermediate coupling, ultimately becoming a magnetic insulator at […]
Read more about Mott insulating states with competing orders in the triangular lattice Hubbard model
10MAR 2021
Allgemein
A superlattice approach to doping infinite-layer nickelates
R. A. Ortiz, H. Menke, D. T. Mantadakis, F. Misják, K. Fürsich, E. Schierle, G. Christiani, G. Logvenov, U. Kaiser, B. Keimer, P. Hansmann, E. Benckiser The recent observation of superconductivity in Sr-doped infinite-layer NdNiO2 thin films has attracted a lot of attention, since this compound is electronically and structurally analogous to the high-Tc superconducting cuprates. […]
Read more about A superlattice approach to doping infinite-layer nickelates