11 papers
Realizing the Emery Model in Optical Lattices for Quantum Simulation of Cuprates and Nickelates
Hannah Lange, Liyang Qiu, Robin Groth +7
The microscopic origin of high-temperature superconductivity in cuprates remains one of the central open questions in condensed matter physics. Growing experimental and theoretical…
Simulating superconductivity in mixed-dimensional -- bilayers with neural quantum states
Hannah Lange, Ao Chen, Antoine Georges +3
Motivated by the recent discovery of superconductivity in the bilayer nickelate LaNiO (LNO) under pressure, we study a mixed-dimensional (mixD) bilayer -$J…
Connecting single-layer - to Kondo lattice models: Exploration with cold atoms
Hannah Lange, Eugene Demler, Jan von Delft +2
The Kondo effect, a hallmark of many-body physics, emerges from the antiferromagnetic coupling between localized spins and conduction fermions, leading to a correlated many-body si…
Extended -wave pairing from an emergent Feshbach resonance in bilayer nickelate superconductors
Pietro Borchia, Hannah Lange, Fabian Grusdt
Since the discovery of unconventional superconductivity in cuprates, unraveling the pairing mechanism of charge carriers in doped antiferromagnets has been a long-standing challeng…
Simulating the two-dimensional model at finite doping with neural quantum states
Hannah Lange, Annika Böhler, Christopher Roth +1
Simulating large, strongly interacting fermionic systems remains a major challenge for existing numerical methods. In this work, we introduce Gutzwiller projected hidden fermion de…
Towards effective models for low-dimensional cuprates: From ground state Hamiltonian reconstruction to spectral functions
Hannah Lange, Tizian Blatz, Ulrich Schollwöck +2
Understanding which minimal effective model captures the essential physics of cuprates is a key step towards unraveling the mechanism behind high- superconductivity. Recent me…