# Entropic Accelerating Universe 

Damien A. Easson 1 , 2 , $^{3}$, ∗ Paul H. Frampton 1 , $^{4}$, † and George F. Smoot 1 , 5 , 6 , 7 , 8 ‡ 

$^{1}$Institute for the Physics and Mathematics of the Universe, University of Tokyo, Kashiwa, Chiba 277-8568, Japan 

2 Department of Physics & School of Earth and Space Exploration & Beyond Center, Arizona State University, Phoenix, AZ 85287-1504, USA 

$^{3}$Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106-4030, USA 

$^{4}$Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC 27599, USA 

$^{5}$Lawrence Berkeley National Lab, 1 Cyclotron Road, Berkeley, CA 94720, USA 

$^{6}$Physics Department, University of California, Berkeley, CA 94720, USA 

$^{7}$Institute for the Early Universe, Ewha Womans University & Advanced Academy, Seoul, Korea and 

$^{8}$Chaire Blaise Pascale, Universite Paris Denis Diderot, Paris 

To accommodate the observed accelerated expansion of the universe, one popu- lar idea is to invoke a driving term in the Friedmann-Lemaˆıtre equation of dark energy which must then comprise 70% of the present cosmological energy density. We propose an alternative interpretation which takes into account the entropy and temperature intrinsic to the horizon of the universe due to the information holograph- ically stored there. Dark energy is thereby obviated and the acceleration is due to an entropic force naturally arising from the information storage on the horizon surface screen. We consider an additional quantitative approach inspired by surface terms in general relativity and show that this leads to the entropic accelerating universe. 

