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Spakowitz, Phys. Rev. E 82, 011913 (2010)). Using the Wilemski-Fixman (G. Wilemski and M. Fixman, J. Chem. Phys. 60, 866 (1974)) formalism we calculate the looping time for a chain in a viscoelastic fluid where the mean square displacement of the center of mass of the chain scales as t^(1/2). We observe that the looping time is faster"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1204.1026","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2012-04-04T18:48:21Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"6248eeb38ef0a11b3ea30e4288132e47a161dac9525fe1f519c89603be2a46fd","abstract_canon_sha256":"c87586a90d3572dc9930564d3beb8a13c6c0447055b102905ef99c3ef25a2e0b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:51:37.954775Z","signature_b64":"Kh0FqgZaAaG+dab7IV828Uj8VZ7r/NgXHHqm2LxETU0ZTcCn91CCfaJFZ0h5NsliA8QkT4bTeL7EIncJQY8bCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a9df6034ee424d400a686dc61678f7bbcc5d8d8c6561131e9054f0939d2da78d","last_reissued_at":"2026-05-18T03:51:37.954307Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:51:37.954307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dynamics of end to end loop formation for an isolated chain in viscoelastic fluid","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.soft","authors_text":"Rajarshi Chakrabarti","submitted_at":"2012-04-04T18:48:21Z","abstract_excerpt":"We theoretically investigate the looping dynamics of a linear polymer immersed in a viscoelastic fluid. 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