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New publication in Quantum
Our work "Critical spin models from holographic disorder" studies the boundary symmetries of discrete-holographic models. We find that these symmetries, analytically described by a "multi-scale quasicrystal ansatz" (MQA), form a new type of disordered critical phase in spin chains, with criticality preserved both in the interacting and non-interacting regime. These results show that discrete holography can lead to us to finding new phases of quantum many-body systems. Link to publication: https://doi.org/10.22331/q-2025-07-22-1808
Jul 22, 2025
New publication in Nature Communications
In our publication "Overlapping qubits from non-isometric maps and de Sitter tensor networks" in Nature Communications, we discuss the effects of gravitational corrections on the Hilbert space of semiclassical, effective field theory. We show that these corrections are closely related to an established concept in quantum information theory: Overlapping qubits, which appear when compressing operators from a larger Hilbert space into a smaller one. We demonstrate the usefulness of this relation by constructed overlapping qubits for a model of expanding spacetime, in which corrections to the effective operators closely resemble effects expected from gravity. Link to publication: https://doi.org/10.1038/s41467-024-55463-9
Jan 27, 2025