{"paper":{"title":"Viscous fluid cosmology in symmetric teleparallel gravity","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Dheeraj Singh Rana, P.K. Sahoo, Raja Solanki, Sanjay Mandal","submitted_at":"2022-11-01T06:29:28Z","abstract_excerpt":"In this manuscript, we analyze the viscous fluid cosmological model in the framework of recently proposed $f(Q)$ gravity by assuming three different forms of bulk viscosity coefficients, specifically, $(i)\\zeta =\\zeta_{0}+\\zeta_{1}\\left( \\frac{\\dot{a}}{a}\\right) +\\zeta_{2}\\left( \\frac{{\\ddot{a}}}{\\dot{a}}\\right) $, $(ii)\\zeta =\\zeta_{0}+\\zeta_{1}\\left( \\frac{\\dot{a}}{a}\\right)$, and $(iii)\\zeta =\\zeta_{0}$ and a linear $f(Q)$ model, particularly, $f(Q)=\\alpha Q$ where $\\alpha \\neq 0$ is free model parameter. We estimate the bulk viscosity coefficients and the model parameter values using the c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2211.03514","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2211.03514/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}