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