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A.Beckwith1 Chongqing University, Department of Physics Chongqing, PRC, 400044
Email: abeckwith@uh.edu
Abstract. We ask if there is always entanglement entropy in the universe. We find the resolution by work from Muller and Lousto, as to entanglement entropy 2 2 .3 H entropy r S a . We present entanglement entropy in the early universe with a steadily shrinking scale factor, due to work from Muller and Lousto , and show that there are consequences due to initial entangled entropy for a time dependent horizon radius in cosmology, with for flat space conditions r(H)=conformal time. In the case of a curved, but not flat space version of entropy, we look at vacuum energy as proportional to the inverse of scale factor squared times the inverse of initial entropy, effectively when there is no initial time except with H r in line with the conformal time being almost zero. . The consequences for this initial entropy being entangled are elaborated in this manuscript. No matter how small the initial radial length gets, then for initial cosmological entropy if it is entanglement entropy, it will not go to zero.
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