{"paper":{"title":"Smooth and fast versus instantaneous quenches in quantum field theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech","cond-mat.str-el"],"primary_cat":"hep-th","authors_text":"Dami\\'an A. Galante, Robert C. Myers, Sumit R. Das","submitted_at":"2015-05-20T02:03:20Z","abstract_excerpt":"We examine in detail the relationship between smooth fast quantum quenches, characterized by a time scale $\\delta t$, and {\\em instantaneous quenches}, within the framework of exactly solvable mass quenches in free scalar field theory. Our earlier studies \\cite{dgm1,dgm2} highlighted that the two protocols remain distinct in the limit $\\delta t \\rightarrow 0$ because of the relation of the quench rate to the UV cut-off, i.e., $1/\\delta t\\ll\\Lambda$ always holds in the fast smooth quenches while $1/\\delta t\\sim\\Lambda$ for instantaneous quenches. Here we study UV finite quantities like correlat"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.05224","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}