{"paper":{"title":"Fate of Quantum Magic","arxiv_id":"2610.39059","primary_cat":"quant-ph","submitted_at":"2026-10-28T23:40:05+00:00","version_compiled":"v1"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13.0 on the question bank abstract-p1-20260923, exactly as returned. No sentence in this record was written by a language model.","schema":"pith.compiled-record/v0","status":"compiled","abstract":{"source":"arXiv listing abstract v1","sentences":[{"i":0,"p":1.0,"id":"s0","own":false,"role":"background","text":"Magic, a quantum resource distinct from entanglement, measures departure from states stabilized by products of Pauli operators.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.07,"main_claim_p":0.03,"quantitative":false,"quantitative_p":0.16,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":1.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":1,"p":0.98,"id":"s1","own":false,"role":"background","text":"Such stabilizer states can be maximally entangled yet admit efficient classical description: quantum advantage requires magic.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.07,"main_claim_p":0.07,"quantitative":true,"quantitative_p":0.54,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":0.98,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.02}},{"i":2,"p":0.8,"id":"s2","own":true,"role":"contribution","text":"We develop a powerful framework to evaluate the degree of magic in generic many-body states.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.95,"main_claim_p":0.05,"quantitative":false,"quantitative_p":0.04,"role_probabilities":{"gap":0.0,"method":0.2,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.8,"interpretation":0.0}},{"i":3,"p":0.88,"id":"s3","own":true,"role":"contribution","text":"We use it to study the fate of magic under thermal and dynamical evolution.","hedge":{"p":0.67,"label":"asserted"},"own_p":0.9,"main_claim_p":0.04,"quantitative":false,"quantitative_p":0.02,"role_probabilities":{"gap":0.0,"method":0.12,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.88,"interpretation":0.0}},{"i":4,"p":1.0,"id":"s4","own":true,"role":"result","text":"In the transverse field Ising model, we find a thermal sudden death of magic that saturates with system size, and occurs after the death of entanglement.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.96,"main_claim_p":0.31,"quantitative":true,"quantitative_p":0.74,"role_probabilities":{"gap":0.0,"method":0.0,"result":1.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":5,"p":0.96,"id":"s5","own":true,"role":"result","text":"We reach similar conclusions in generic spin chains, and in the Kitaev quantum spin liquid on the honeycomb lattice, where the threshold shows an intricate dependence on subregion shape.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.94,"main_claim_p":0.15,"quantitative":false,"quantitative_p":0.08,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.96,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.04,"interpretation":0.0}},{"i":6,"p":0.98,"id":"s6","own":true,"role":"contribution","text":"We then study how magic equilibrates after a quantum quench.","hedge":{"p":0.66,"label":"unclear"},"own_p":0.91,"main_claim_p":0.03,"quantitative":false,"quantitative_p":0.03,"role_probabilities":{"gap":0.0,"method":0.02,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.98,"interpretation":0.0}},{"i":7,"p":1.0,"id":"s7","own":true,"role":"result","text":"In quenches of generic spin chains, the magic of a subregion typically dies before entanglement, contrary to thermal trajectories.","hedge":{"p":0.91,"label":"asserted"},"own_p":0.94,"main_claim_p":0.18,"quantitative":true,"quantitative_p":0.78,"role_probabilities":{"gap":0.0,"method":0.0,"result":1.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":8,"p":1.0,"id":"s8","own":true,"role":"interpretation","text":"An explanation is given in terms of the geometry of non-magical states.","hedge":{"p":0.95,"label":"asserted"},"own_p":0.77,"main_claim_p":0.05,"quantitative":false,"quantitative_p":0.04,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":1.0}},{"i":9,"p":0.59,"id":"s9","own":true,"role":"result","text":"As a third type of trajectory, we examine the fate of magic with separation with an appropriate notion of non-local magic and establish a sudden death.","hedge":{"p":0.99,"label":"asserted"},"own_p":0.94,"main_claim_p":0.11,"quantitative":false,"quantitative_p":0.09,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.59,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.41,"interpretation":0.0}},{"i":10,"p":0.6,"id":"s10","own":true,"role":"contribution","text":"Finally, we show how to experimentally witness a volume law of frame-robust magic in quantum materials by using neutron scattering.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.82,"main_claim_p":0.11,"quantitative":false,"quantitative_p":0.22,"role_probabilities":{"gap":0.0,"method":0.25,"result":0.14,"background":0.0,"limitation":0.0,"future_work":0.01,"contribution":0.6,"interpretation":0.0}}]},"compiled":{"main_claim":{"p":0.69,"text":"In the transverse field Ising model, we find a thermal sudden death of magic that saturates with system size, and occurs after the death of entanglement.","location":"abstract 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