{"paper":{"title":"The Shear Viscosity in an Anisotropic Unitary Fermi Gas","arxiv_id":"1607.04799","primary_cat":"cond-mat.quant-gas","submitted_at":"2016-07-16T20:06:48+00:00","version_compiled":"v2"},"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. 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potential.","hedge":{"p":1.0,"label":"hedged_possibility"},"own_p":0.54,"main_claim_p":0.27,"quantitative":false,"quantitative_p":0.04,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.05,"background":0.0,"limitation":0.0,"future_work":0.19,"contribution":0.56,"interpretation":0.19}},{"i":2,"p":0.56,"id":"s2","own":false,"role":"interpretation","text":"In particular, we suggest that this experimental setup could mimic some features of anisotropic geometries that have recently been studied for strongly coupled field theories which have a gravitational dual.","hedge":{"p":1.0,"label":"hedged_possibility"},"own_p":0.13,"main_claim_p":0.06,"quantitative":false,"quantitative_p":0.11,"role_probabilities":{"gap":0.0,"method":0.01,"result":0.0,"background":0.32,"limitation":0.0,"future_work":0.01,"contribution":0.1,"interpretation":0.56}},{"i":3,"p":0.99,"id":"s3","own":false,"role":"background","text":"Results using the AdS/CFT correspondence in these theories show that in systems with a background linear potential, certain viscosity components can be made much smaller than the entropy density, parametrically violating the bound proposed by Kovtun, Son and Starinets (KSS).","hedge":{"p":0.99,"label":"asserted"},"own_p":0.06,"main_claim_p":0.11,"quantitative":true,"quantitative_p":0.93,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.01,"background":0.99,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":4,"p":0.86,"id":"s4","own":true,"role":"interpretation","text":"This intuition, along with results from a Boltzmann analysis that we perform, suggests that a violation of the KSS bound can perhaps occur in the unitary Fermi gas system when it is subjected to a suitable anisotropic trapping potential which may be approximated to be linear in a suitable range of parameters.","hedge":{"p":0.98,"label":"hedged_possibility"},"own_p":0.7,"main_claim_p":0.52,"quantitative":true,"quantitative_p":0.65,"role_probabilities":{"gap":0.0,"method":0.02,"result":0.05,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.07,"interpretation":0.86}},{"i":5,"p":0.94,"id":"s5","own":true,"role":"contribution","text":"We give a concrete proposal for an experimental setup where an anisotropic shear viscosity tensor may arise.","hedge":{"p":0.74,"label":"asserted"},"own_p":0.73,"main_claim_p":0.11,"quantitative":false,"quantitative_p":0.03,"role_probabilities":{"gap":0.0,"method":0.05,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.01,"contribution":0.94,"interpretation":0.0}},{"i":6,"p":0.71,"id":"s6","own":false,"role":"interpretation","text":"In such situations, it may also be possible to observe a reduction in the spin one component of the shear viscosity from its lowest value observed so far in ultracold Fermi 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