linkedin post 2021-04-17 03:56:07

COSMOLOGY. “In the physical universe, the vector mode dies out fast due to the expanding spacetime. In the analogue gravity/cosmology situation addressed here, even though we are dealing with a contracting spacetime, we are at liberty to ignore the vector mode in the first place without altering the curl-free and non zero trace condition of χij.”

https://lnkd.in/dusKMKM

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