THERMODYNAMICS OF NONCOMMUTATIVE DE SITTER SPACE–TIME
2009 ◽
Vol 18
(01)
◽
pp. 159-171
◽
Keyword(s):
We study the effects of noncommutativity of space–time geometry on the thermodynamical properties of the de Sitter horizon. We show that noncommutativity results in modifications in temperature, entropy and vacuum energy and that these modifications are of order of the Planck scale, suggesting that the size of the noncommutative parameter should be close to that of the Planck. In an alternative way to deal with noncommutativity, we obtain a quantization rule for the entropy. Since noncommutativity in space–time geometry modifies the Heisenberg algebra and introduces the general uncertainty principle, we also investigate the above problem in this framework.
1998 ◽
Vol 196
(3)
◽
pp. 535-570
◽
Keyword(s):
2021 ◽
Vol 36
(02)
◽
pp. 2150011
Keyword(s):
Keyword(s):
Keyword(s):
2014 ◽
Vol 92
(6)
◽
pp. 484-487
◽