Jae-Weon Lee et al JCAP08(2007)005 doi:10.1088/1475-7516/2007/08/005
Dark energy from vacuum entanglement
Jae-Weon Lee1, Jungjai Lee2 and Hyeong-Chan Kim3
Show affiliationsWe suggest that vacuum entanglement energy associated with the entanglement entropy of the universe is the origin of dark energy. The observed properties of dark energy can be explained by using the nature of entanglement energy without modification of gravity or exotic matter. From the number of degrees of freedom in the standard model, we obtain the equation of state parameter 
and 
for the holographic dark energy, which are consistent with current observational data at the 95% confidence level.
- Keywords
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quantum field theory on curved space
- PACS
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03.67.Mn Entanglement measures, witnesses, and other characterizations
- Subjects
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Quantum information and quantum mechanics
- Dates
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Issue 08 (August 2007)
Received 3 May 2007, accepted for publication 17 July 2007
Published 3 August 2007
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Dark energy from vacuum entanglement
Jae-Weon Lee et al JCAP08(2007)005
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