Topic: any theoretical physicists in here to describe Erik Verlinde's work?
Sheila LaBoof started this discussion 9 years ago #57,778
https://arxiv.org/pdf/1611.02269v2.pdf
Emergent Gravity
and the Dark Universe
Abstract
Recent theoretical progress indicates that spacetime and gravity emerge
together from the entanglement structure of an underlying microscopic theory.
These ideas are best understood in Anti-de Sitter space, where they rely on the
area law for entanglement entropy. The extension to de Sitter space requires
taking into account the entropy and temperature associated with the cosmolog-
ical horizon. Using insights from string theory, black hole physics and quantum
information theory we argue that the positive dark energy leads to a thermal
volume law contribution to the entropy that overtakes the area law precisely at
the cosmological horizon. Due to the competition between area and volume law
entanglement the microscopic de Sitter states do not thermalise at sub-Hubble
scales: they exhibit memory e ects in the form of an entropy displacement caused
by matter. The emergent laws of gravity contain an additional `dark' gravita-
tional force describing the `elastic' response due to the entropy displacement. We
derive an estimate of the strength of this extra force in terms of the baryonic
mass, Newton's constant and the Hubble acceleration scale a0 = cH0, and pro-
vide evidence for the fact that this additional `dark gravity force' explains the
observed phenomena in galaxies and clusters currently attributed to dark matter.
Emergent Gravity
and the Dark Universe
Abstract
Recent theoretical progress indicates that spacetime and gravity emerge
together from the entanglement structure of an underlying microscopic theory.
These ideas are best understood in Anti-de Sitter space, where they rely on the
area law for entanglement entropy. The extension to de Sitter space requires
taking into account the entropy and temperature associated with the cosmolog-
ical horizon. Using insights from string theory, black hole physics and quantum
information theory we argue that the positive dark energy leads to a thermal
volume law contribution to the entropy that overtakes the area law precisely at
the cosmological horizon. Due to the competition between area and volume law
entanglement the microscopic de Sitter states do not thermalise at sub-Hubble
scales: they exhibit memory e ects in the form of an entropy displacement caused
by matter. The emergent laws of gravity contain an additional `dark' gravita-
tional force describing the `elastic' response due to the entropy displacement. We
derive an estimate of the strength of this extra force in terms of the baryonic
mass, Newton's constant and the Hubble acceleration scale a0 = cH0, and pro-
vide evidence for the fact that this additional `dark gravity force' explains the
observed phenomena in galaxies and clusters currently attributed to dark matter.
Anonymous B joined in and replied with this 9 years ago, 1 hour later[^] [v] #741,574
Jump to page 33 and discover how the author copped out and simplified.
And what is the question? Read the abstract slowly.
And what is the question? Read the abstract slowly.
Anonymous C joined in and replied with this 9 years ago, 7 minutes later, 1 hour after the original post[^] [v] #741,575
@previous (B)
Recent theoretical progress indicates that spacetime and music emerge
together from the entanglement structure of an underlying Dadrock theory.
These ideas are best understood in Autism-de Sitter space, where they rely on the
area law for entanglement entropy. The extension to de Sitter space requires
taking into account the entropy and butthurt associated with the musiolog-
ical horizon. Using insights from string theory, black hole physics and quantum
information theory we argue that the positive rock energy leads to a thermal
volume law contribution to the entropy that overtakes the Dad law precisely at
the musiological horizon. Due to the competition between rock and Dad law
entanglement the microscopic de Sitter states do not thermalise at sub-Hubble
scales: they exhibit memory e ects in the form of an entropy displacement caused
by nostalgia. The emergent laws of gravity contain an additional `dadrock' groovita-
tional force describing the `eclectic' response due to the entropy displacement. We
derive an estimate of the strength of this extra force in terms of the dadrockers
mass, Newton's constant beats and the Hubble riff acceleration scale a0 = cH0, and pro-
vide evidence for the fact that this additional `dadrock force' explains the
observed phenomena in galaxies and clusters currently attributed to dark matter.
Recent theoretical progress indicates that spacetime and music emerge
together from the entanglement structure of an underlying Dadrock theory.
These ideas are best understood in Autism-de Sitter space, where they rely on the
area law for entanglement entropy. The extension to de Sitter space requires
taking into account the entropy and butthurt associated with the musiolog-
ical horizon. Using insights from string theory, black hole physics and quantum
information theory we argue that the positive rock energy leads to a thermal
volume law contribution to the entropy that overtakes the Dad law precisely at
the musiological horizon. Due to the competition between rock and Dad law
entanglement the microscopic de Sitter states do not thermalise at sub-Hubble
scales: they exhibit memory e ects in the form of an entropy displacement caused
by nostalgia. The emergent laws of gravity contain an additional `dadrock' groovita-
tional force describing the `eclectic' response due to the entropy displacement. We
derive an estimate of the strength of this extra force in terms of the dadrockers
mass, Newton's constant beats and the Hubble riff acceleration scale a0 = cH0, and pro-
vide evidence for the fact that this additional `dadrock force' explains the
observed phenomena in galaxies and clusters currently attributed to dark matter.
Anonymous D joined in and replied with this 9 years ago, 28 minutes later, 1 hour after the original post[^] [v] #741,578
@previous (C)> We derive an estimate of the strength of this extra force in terms of the dadrockers
mass,