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Abstract: We consider a simple extension to the previously found gravity solutioncorresponding to a boost invariant Bjorken plasma, by allowing components thatare asymmetric under parity flipping of the spacetime rapidity. Besides thequestion whether this may have a realization in collisions of different speciesof projectiles, such as lead-gold collision, our new time dependent gravitybackground can serve as a test ground for the recently proposed second orderconformal viscous hydrodynamics. We find that non-trivial parity-asymmetriceffects start to appear at second order in late time expansion, and we map thecorresponding energy-momentum tensor to the second order conformalhydrodynamics to find certain second order transport coefficients. Our resultsare in agreement with the previous results in literature, giving one morecorroborative evidence for the validity of the framework.



Autor: Ho-Ung Yee

Fuente: https://arxiv.org/



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