120 citations · 132 across the 12 of their papers we have counts for
15 papers
Measuring higher-order bulk topology in a programmable quantum simulator
Pratik Sathe, Niclas Heinsdorf, Majid Kheirkhah +13
Topological insulators lie outside the standard Landau paradigm: Instead of being characterized by local order parameters and spontaneous symmetry breaking, their defining properti…
Topological superconductivity in an altermagnet-superconductor heterostructure
Michael Liudeng, Hrishikesh Patel, Marcel Franz +1
Fully gapped spin-triplet superconductors offer a natural setting for topological edge transport and Majorana excitations. Here we propose a heterostructure that interfaces alterma…
Interaction-mediated Co-existence of Altermagnetism and Topology
Jasmin Bedow, Nitin Kaushal, Marcel Franz
We study an extended Hubbard model on Lieb lattice at electron filling 2 and 4, and demonstrate that the interactions lead to the simultaneous emergence of altermagnetic order and…
Topological Altermagnetic Insulators
Jasmin Bedow, Nitin Kaushal, Marcel Franz
We study the emergence of altermagnetic topological phases stabilized by Ising spin-orbit coupling in a prototypical Lieb lattice model of a correlated altermagnet. Treating the el…
Unconventional superconductivity in VO family of surface altermagnets
M. Franz
Motivated by the recent discovery of superconductivity at 16.3 K in layered oxychalcogenide NaVSeO we investigate pairing instabilities in the broader family of lay…
Spontaneous altermagnetism in multi-orbital correlated electron systems
Nitin Kaushal, Adarsh S. Patri, Marcel Franz
Altermagnets have attracted considerable attention in recent years owing to their potential technological applications in spintronics and magnonics. Recently, a new class of sponta…
Coherent high-velocity chiral magnons in the metallic altermagnet CrSb
Ashutosh K. Singh, Niclas Heinsdorf, Abraham A. Mancilla +8
We report the collective magnetism of the metallic altermagnet CrSb. Magnetic susceptibility and polarized neutron diffraction measurements show that CrSb is a perfectly compensate…
Proximitizing altermagnets with conventional superconductors
Niclas Heinsdorf, Marcel Franz
Recent theoretical work highlighted unique properties of superconducting altermagnets, including the wealth of topologically non-trivial phases as well as their potential uses in s…
Persistent spin currents in superconducting altermagnets
Kyle Monkman, Joan Weng, Niclas Heinsdorf +2
Superconductors are famously capable of supporting persistent electrical currents, that is, currents that flow without any measurable decay as long as the material is kept in the s…
Correlated insulating states in slow Dirac fermions on a honeycomb moir{é} superlattice
Dongyang Yang, Jing Liang, Haodong Hu +8
Strong Coulomb repulsion is predicted to open a many-body charge gap at the Dirac point of graphene, transforming the semimetal into a Mott insulator. However, this correlated insu…
Comment on: "Dynamics of disordered quantum systems with two- and three-dimensional tensor networks" arXiv:2503.05693
Andrew D. King, Alberto Nocera, Marek M. Rams +8
In a recent preprint [1] (arXiv:2503.05693), Tindall et al. presented impressive classical simulations of quantum dynamics using tensor networks. Their methods represent a signific…
Altermagnetism in modified Lieb lattice Hubbard model
Nitin Kaushal, Marcel Franz
We study the emergence of altermagnetism from repulsive interactions for electrons on the Lieb lattice as a model of quasi-2D oxychalcogenides with the so-called "anti-CuO" l…
Beyond-classical computation in quantum simulation
Andrew D. King, Alberto Nocera, Marek M. Rams +60
Quantum computers hold the promise of solving certain problems that lie beyond the reach of conventional computers. However, establishing this capability, especially for impactful…
Quantum error mitigation in quantum annealing
Mohammad H. Amin, Andrew D. King, Jack Raymond +32
Quantum Error Mitigation (QEM) presents a promising near-term approach to reduce error when estimating expectation values in quantum computing. Here, we introduce QEM techniques ta…
Nature of the current-induced insulator-to-metal transition in CaRuO as revealed by transport-ARPES
Cissy T Suen, Igor Marković, Marta Zonno +21
The Mott insulator CaRuO exhibits a rare insulator-to-metal transition (IMT) induced by DC current. While structural changes associated with this transition have been track…