Entropy and Quantum Gravity arXiv:1504.00882v2 [gr
... that there is an approximate quantum gravity theory valid for energies well below the Planck energy and that this can be formulated along the lines of a standard quantum mechanical theory with a total Hilbert space, H, which arises as the tensor product of a matter Hilbert space, Hmatter , and a gra ...
... that there is an approximate quantum gravity theory valid for energies well below the Planck energy and that this can be formulated along the lines of a standard quantum mechanical theory with a total Hilbert space, H, which arises as the tensor product of a matter Hilbert space, Hmatter , and a gra ...
Review for final
... o Be able to make connections between Kirchoff’s law (elements absorb electromagnetic energy at the same frequencies at which they emit the electromagnetic energy) and the method for determining planet’s atmospheric composition. ...
... o Be able to make connections between Kirchoff’s law (elements absorb electromagnetic energy at the same frequencies at which they emit the electromagnetic energy) and the method for determining planet’s atmospheric composition. ...
Complexity, action, and black holes
... in the distant past provide additional tests of CV-duality. For these shock wave geometries it was found that the maximal volume slice had cancellations that precisely match cancellations expected in the complexity [6–8]. Finally, various tensor network constructions qualitatively agreed with the h ...
... in the distant past provide additional tests of CV-duality. For these shock wave geometries it was found that the maximal volume slice had cancellations that precisely match cancellations expected in the complexity [6–8]. Finally, various tensor network constructions qualitatively agreed with the h ...
Lecture 01 - BITS Pilani
... • Study of Interaction of light with matter was in progress. (How light was emitted or absorbed ??) • Any object radiates energy, when heated. The amount of energy emitted, and its frequency distribution depends on the temperature and on the material. ...
... • Study of Interaction of light with matter was in progress. (How light was emitted or absorbed ??) • Any object radiates energy, when heated. The amount of energy emitted, and its frequency distribution depends on the temperature and on the material. ...
Abstracts - INAF-Osservatorio Astronomico di Roma
... symmetry of the background geometries allowed us to provide closed expressions for the local characteristics of the vacuum state. We also discuss the effects induced by the presence of boundaries. The latter modify the spectrum of the zero-point fluctuations of quantum fields and, as a result of thi ...
... symmetry of the background geometries allowed us to provide closed expressions for the local characteristics of the vacuum state. We also discuss the effects induced by the presence of boundaries. The latter modify the spectrum of the zero-point fluctuations of quantum fields and, as a result of thi ...
The relation among black holes, their host galaxies and AGN activity
... later and take more time to grow. See also Merloni 2004. ...
... later and take more time to grow. See also Merloni 2004. ...
Can we detect intermediate mass ratio inspirals?
... and θ ∝ 1/M, so the difference scales positively with mass. When comparing EMRI-fied 3.5 PN and 3.5 PN, we recall that the cycle differences are accumulated fairly uniformly over the course of the inspiral; since lower mass systems undergo more cycles of oscillation in total over 1 year, such system ...
... and θ ∝ 1/M, so the difference scales positively with mass. When comparing EMRI-fied 3.5 PN and 3.5 PN, we recall that the cycle differences are accumulated fairly uniformly over the course of the inspiral; since lower mass systems undergo more cycles of oscillation in total over 1 year, such system ...
1 A CLOSED NON-COLLAPSING 3-D UNIVERSE PREDICTING A
... can only form dimples in the surface of the 4-D core. So a new theory of gravity must be derived from the new idea of spatial condensation. These dimples in the 4-D ball must account for what we have heretofore considered an “attractive force” and the geometry of those dimples must predict the same ...
... can only form dimples in the surface of the 4-D core. So a new theory of gravity must be derived from the new idea of spatial condensation. These dimples in the 4-D ball must account for what we have heretofore considered an “attractive force” and the geometry of those dimples must predict the same ...
Lecture 3: Emission and absorption
... Saying Iν = Bν is a statement that the radiation field is described by the Planck function Saying Sν = Bν describes the physical source of the radiation, jν /kν , as one that produces blackbody radiation ...
... Saying Iν = Bν is a statement that the radiation field is described by the Planck function Saying Sν = Bν describes the physical source of the radiation, jν /kν , as one that produces blackbody radiation ...
Document
... Black Holes at the center of a galaxy may create cavities and voids of extra-galactic material and may move the material for entire clusters of galaxies over billions of years • Shaping the galactic fabric of the Universe on the grandest of scales tens of millions ly across ...
... Black Holes at the center of a galaxy may create cavities and voids of extra-galactic material and may move the material for entire clusters of galaxies over billions of years • Shaping the galactic fabric of the Universe on the grandest of scales tens of millions ly across ...
2. The World at Large: From the Big Bang to Black Holes
... time. Mankind has just started its evolution as an intelligent lifeform. If they do not perish prematurely, our offspring will advance, during the billions of years of their future, far beyond Earth to distant solar systems. Even if now the Earth was the only planet carrying life, there would be suf ...
... time. Mankind has just started its evolution as an intelligent lifeform. If they do not perish prematurely, our offspring will advance, during the billions of years of their future, far beyond Earth to distant solar systems. Even if now the Earth was the only planet carrying life, there would be suf ...
Localized shocks Please share
... gauge theory? A number of probes of the interior have been proposed. These include twosided correlation functions [1–3], mutual information and entropy [4–7], and the pullbackpushforward [8, 9] modification of the standard smearing function procedure [10–14]. These probes work well for short timesca ...
... gauge theory? A number of probes of the interior have been proposed. These include twosided correlation functions [1–3], mutual information and entropy [4–7], and the pullbackpushforward [8, 9] modification of the standard smearing function procedure [10–14]. These probes work well for short timesca ...
Overview spherical accretion
... Taking the sounds speed a∞ to be comparable to the mean particle speed v∞ , then this is times the collisionless accretion rate (page 11) ! For typical ionised interstellar gas with a∞ ~ 10 km/s, the accretion rate is a factor 109 ...
... Taking the sounds speed a∞ to be comparable to the mean particle speed v∞ , then this is times the collisionless accretion rate (page 11) ! For typical ionised interstellar gas with a∞ ~ 10 km/s, the accretion rate is a factor 109 ...
Frontiers of Physics - Wright State University
... True, the CMBR verified the Big Bang, had the correct temperature, and had a blackbody spectrum as expected. But the CMBR was too smooth—it looked identical in every direction. Galaxies and other similar entities could not be formed without the existence of fluctuations in the primordial stages of t ...
... True, the CMBR verified the Big Bang, had the correct temperature, and had a blackbody spectrum as expected. But the CMBR was too smooth—it looked identical in every direction. Galaxies and other similar entities could not be formed without the existence of fluctuations in the primordial stages of t ...
Quantum Gravity and the Holographic Mass
... considering that all the vibrational modes have energies of hω / 2 . When summed over all field modes, an infinite value results unless renormalized utilizing a Planck unit cutoff [5]. Yet, while the high curvature of general relativity and the vacuum fluctuations of quantum field theory converge an ...
... considering that all the vibrational modes have energies of hω / 2 . When summed over all field modes, an infinite value results unless renormalized utilizing a Planck unit cutoff [5]. Yet, while the high curvature of general relativity and the vacuum fluctuations of quantum field theory converge an ...
Quantum Gravity and the Holographic Mass
... considering that all the vibrational modes have energies of hω / 2 . When summed over all field modes, an infinite value results unless renormalized utilizing a Planck unit cutoff [5]. Yet, while the high curvature of general relativity and the vacuum fluctuations of quantum field theory converge an ...
... considering that all the vibrational modes have energies of hω / 2 . When summed over all field modes, an infinite value results unless renormalized utilizing a Planck unit cutoff [5]. Yet, while the high curvature of general relativity and the vacuum fluctuations of quantum field theory converge an ...
Black Hole Remnants and the Information Loss Paradox
... the size of an elementary particle [at least as seen from the exterior], e.g., “maximon”, “friedmon”, and “planckon” [24,29–33], while some “remnants” can be astrophysical [34], which we will not discuss much in this review [the proposal by Ellis in [34] is that Hawking radiation and the cosmic micr ...
... the size of an elementary particle [at least as seen from the exterior], e.g., “maximon”, “friedmon”, and “planckon” [24,29–33], while some “remnants” can be astrophysical [34], which we will not discuss much in this review [the proposal by Ellis in [34] is that Hawking radiation and the cosmic micr ...
Hawking radiation
Hawking radiation is black body radiation that is predicted to be released by black holes, due to quantum effects near the event horizon. It is named after the physicist Stephen Hawking, who provided a theoretical argument for its existence in 1974, and sometimes also after Jacob Bekenstein, who predicted that black holes should have a finite, non-zero temperature and entropy.Hawking's work followed his visit to Moscow in 1973 where the Soviet scientists Yakov Zeldovich and Alexei Starobinsky showed him that, according to the quantum mechanical uncertainty principle, rotating black holes should create and emit particles. Hawking radiation reduces the mass and energy of black holes and is therefore also known as black hole evaporation. Because of this, black holes that lose more mass than they gain through other means are expected to shrink and ultimately vanish. Micro black holes are predicted to be larger net emitters of radiation than larger black holes and should shrink and dissipate faster.In September 2010, a signal that is closely related to black hole Hawking radiation (see analog gravity) was claimed to have been observed in a laboratory experiment involving optical light pulses. However, the results remain unverified and debatable. Other projects have been launched to look for this radiation within the framework of analog gravity. In June 2008, NASA launched the Fermi space telescope, which is searching for the terminal gamma-ray flashes expected from evaporating primordial black holes. In the event that speculative large extra dimension theories are correct, CERN's Large Hadron Collider may be able to create micro black holes and observe their evaporation.