Quantum Gravity May Explain Dark Matter
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Quantum Gravity Could Shed Light on Dark Matter
Summary:
This article explores how a proper understanding of quantum gravity might eliminate the need for dark matter to account for observed gravitational effects.Keywords:
science, physics, quantum gravity, dark matterArticle:
The quantum vacuum is filled with transient acceleration vectors. These vectors, which have an average magnitude and random orientations, behave differently when observed from an accelerated frame. Vectors aligning with the frame appear weaker, while those opposing it become stronger, creating a net polarization effect within the vacuum. When the frame's acceleration, denoted as \( g \), is small, the effect is linear, with a full vacuum polarization coefficient. To account for high-energy fluctuations, the standard exponential suppression comes into play, resulting in vacuum polarization expressed as \( g \exp(g/a) \). The terms, when combined with the dipole moment, have energy dimensions.
Taking a galaxy as an example, its rest frame is accelerated relative to local inertial frames falling into the center. This rest frame sees a polarized vacuum, enhancing the galaxy’s gravitational field, \( g \). Thus, the equation becomes:
\[ g = -\frac{GM}{r^2} + g \exp(g/a) \]
Here, \( g \) is treated as negative. When \( g \) is much larger than \( a \), the exponential term fades, reverting to Newton's law. However, when \( g \) is less than \( a \), the exponential term expands to \( 1 + g/a \), transforming the equation to:
\[ g^2 = \frac{aGM}{r^2} \]
This matches the empirical formula developed by Milgrom to describe star and galaxy motion in weak gravitational fields, sans modifying the law of motion (Scientific American, August 2002). Milgrom identified \( a \) as approximately one Angstrom per second squared, close to the "surface gravity" of an electron, a one-kilogram mass field at one meter, or a galaxy's outer field. Importantly, \( a^2 \) is similar to the cosmological constant, assuming \( c = 1 \). Here, \( a \) could represent the saturated force of the quantum vacuum.
These observations can be explained by considering a reasonable amount of regular matter, \( M \), and employing the quantum gravity law correctly, eliminating the need for dark matter.
As the universe expands, this polarization could enhance and potentially trigger further acceleration, possibly from a past disturbance. Conversely, collapsing regions might experience enhanced collapse. This suggests a cosmos of expanding and collapsing regions. Extreme expansion could trigger a big bang as virtual particles emerge from the vacuum, while a collapsing region might lead to a big crunch, compressing matter back into the vacuum. This cycle might be infinite and eternal.
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