Today's #arXivsummary: arxiv.org/abs/2210.00012 Sanyal et. al. Authors study model of hole-doped collinear Ising AFM on honeycomb lattice as route toward realization of subsystem symmetry. Numerical/analytical verification of exact conservation of dipole symmetry; forbids fractons

The quantum Fourier transform is an MPO of bond dimension of approximately 8: arxiv.org/abs/2210.08468 (if you classically reverse the output bits). This was observed in 2014, but we give detailed arguments why, then use it to classically compute "superfast" Fourier transforms.

The superconducting condensate in high-temperature cuprate superconductors fragments into multiple Josephson-coupled stripe segments go.aps.org/3CJebBP

My paper on the fragmentation of Cooper condensates by stripes just got published in Physical Review Letters with an editor's suggestion. I think it's beautiful that strongly correlated electrons can spontaneously form an emergent array of Josephson junctions. journals.aps.org/prl/abstract/1…

New paper published Physical Review Research! Twisted moiré materials can host exciting states of matter. We establish the phase diagram of the moiré Hubbard model hosting possible spin liquids, superconductors, and stripe orderings. Thanks to everyone involved! doi.org/10.1103/PhysRe…

What's your v-score? The most comprehensive database of variational solutions to many body quantum problems is out. Classical computing can solve many problems to high accuracy, little room for quantum advantage there. Open problems persist in 2D frustrated/interacting fermions.

Pretty sure Feynman wasn't aware of this. Quantum electrodynamics not only describes electrons and photons but also serves as an organizing principle of phases of matter and their excitations in triangular lattice antiferromagnets, see our new preprint: arxiv.org/abs/2303.01585

We have a newly created Twitter account for our institute: you can now follow MPI-PKS Dresden MPI-PKS Dresden to get updates about our research, publication highlights, workshops, etc!

Our book on 'Out-of-equilibrium Soft Matter: Active Fluids' has been finally published by RSC -- check it out! :) Many thanks to Howard Stone (Princeton University) & Luigi Gentile for a great collaboration and all the authors for contributing fantastic chapters!!

Wonderful agreement between experiments and our simulations for the peculiar Bose-einstein condensation in the dimer magnet Yb2Si2O7 just got published in Physical Review B. Thank you Chunhan and Miles Stoudenmire for the great collaboration. link.aps.org/doi/10.1103/Ph…

In our preprint on the arxiv today: arxiv.org/abs/2306.14887 We (Matt Fishman, Miles Stoudenmire, Dries Sels and myself) show how an accurate, efficient tensor network calculation can be done for the Kicked Ising model recently simulated by IBM on their Eagle quantum processor.

Announcing our new preprint. The condensate of a superconductor in the Hubbard model can fragment if it interacts with a charge density wave. An intertwined Ginzburg-Landau theory nicely matches our DMRG data, thanks to Niccolò Baldelli, Benedikt, and Matt. arxiv.org/abs/2307.11820

Ever wondered how to have electrons perform a line dance? Our paper on unidirectional mobility constraints in doped antiferromagnets just got published in Physical Review Letters and holds the answer, journals.aps.org/prl/abstract/1…

Quantum electrodynamics not only describes electrons and photons but also triangular antiferromagnets! Our findings are now published in Physical Review X, journals.aps.org/prx/abstract/1… with a wonderful popular summary in Physics Magazine physics.aps.org/articles/v17/63 Thanks Andreas Läuchli & Sylvain!

Tensor networks go finite-temperature dynamics! We tackle an open experimental riddle concerning anomalous thermal broadening in SrCu2(BO3)2 with a novel technique using complex-time correlations for computing scattering amplitudes. arxiv.org/abs/2405.18475 arxiv.org/abs/2405.18484

Our endeavor on variational benchmarks for quantum many-body problems is now published in Science Magazine! In this large collaborative work (~30 institutions) led by Computational Quantum Science Lab EPFL, we established a practical, agreed-upon metric to quantify the hardness of quantum problems

New research from #FlatironCCQ has figured out why a classical computer could solve a complex problem some thought only a quantum computer could do. The results provide new insights into quantum dynamics: simonsfoundation.org/2024/10/29/the… #science #quantumphysics

Speed limits and traffic jams for electrons. We find that the strength of magnetic interactions determines how stripe order and magnetic correlations spread in the two-dimensional t-J models, from ballistic transport to complete dynamical freezing. arxiv.org/abs/2410.16387

🚀 Announcing XDiag: a fast, scalable, open-source package for exact diagonalization of quantum many-body systems! Features advanced algorithms, parallelization, a user-friendly Julia interface, and efficient C++ core. awietek.github.io/xdiag/ arxiv.org/abs/2505.02901