2023
DOI: 10.1007/jhep01(2023)046
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Determining all thermodynamic transport coefficients for an interacting large N quantum field theory

Abstract: Thermodynamic transport coefficients can be calculated directly from quantum field theory without requiring analytic continuation to real time. We determine all second-order thermodynamic transport coefficients for the uncharged N-component massless (critical) scalar field theory with quartic interaction in the large N limit, for any value of the coupling. We find that in the large N limit, all thermodynamic transport coefficients for the interacting theory can be expressed analytically in terms of the in-medi… Show more

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Cited by 5 publications
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“…Despite the attractive feature of large-N solvability, applications of large-N techniques for scalar and fermionic theories has remained somewhat dormant since the 1970s. This provides opportunity for using large-N techniques to solve problems of interest, such as calculation of transport coefficients [15][16][17], finite temperature correlators [18,19], finite-density systems [20], as well as real-time evolution in quantum field theory [21].…”
Section: Introductionmentioning
confidence: 99%
“…Despite the attractive feature of large-N solvability, applications of large-N techniques for scalar and fermionic theories has remained somewhat dormant since the 1970s. This provides opportunity for using large-N techniques to solve problems of interest, such as calculation of transport coefficients [15][16][17], finite temperature correlators [18,19], finite-density systems [20], as well as real-time evolution in quantum field theory [21].…”
Section: Introductionmentioning
confidence: 99%