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Limits from Weak Gravity Conjecture on Chaplygin-Gas-Type Models |
| WU Xing;ZHU Zong-Hong |
| Department of Astronomy, Beijing Normal University, Beijing 100875 |
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| Cite this article: |
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WU Xing, ZHU Zong-Hong 2008 Chin. Phys. Lett. 25 1517-1520 |
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Abstract The weak gravity conjecture is proposed as a criterion to distinguish the landscape from the swampland in string theory. As an application in cosmology of this conjecture, we use it to impose theoretical constraint on parametersof the Chaplygin-gas-type models. Our analysis indicates that the
Chaplygin-gas-type models realized in quintessence field are in the swampland.
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| Keywords:
98.80.Cq
95.36.+x
11.25.-w
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Received: 12 December 2007
Published: 31 March 2008
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| PACS: |
98.80.Cq
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(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
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95.36.+x
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(Dark energy)
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11.25.-w
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(Strings and branes)
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