What if the universe is a fractal?
If the fractal universe idea is true, then we should see our local cosmic web embedded inside a much larger cosmic web. Conversely, the voids of our universe aren’t entirely empty. They do contain a few faint dwarf galaxies, and those few galaxies are arranged in a subtle, faint version of the cosmic web.
Is space time a fractal?
These recent theories of quantum gravity describe a fractal structure for spacetime itself, and suggest that the dimensionality of space evolves with time. Specifically, they suggest that reality is 2D at the Planck scale, and that spacetime gradually becomes 4D at larger scales.
Could the universe be a Mandelbrot set?
But now, a new astronomy survey refutes the notion. The universe is fractal-like out to many distance scales, but at a certain point, the mathematical form breaks down. There are no more Russian nesting dolls — i.e., clumps of matter containing smaller clumps of matter — larger than 350 million light-years across.
Can you have 2.5 Dimensions?
There’s no such thing as “2.5 dimensional universe”. When we talk about the “dimension of space” we’re talking about the number of completely different directions that are available, not the whole “sphere thing”.
Are there dimensions?
The world as we know it has three dimensions of space—length, width and depth—and one dimension of time. But there’s the mind-bending possibility that many more dimensions exist out there. According to string theory, one of the leading physics model of the last half century, the universe operates with 10 dimensions.
Are galaxies fractal?
According to their latest paper, which has been submitted to Nature Physics, Sylos Labini and Pietronero, along with physicists Nikolay Vasilyev and Yurij Baryshev of St Petersburg State University in Russia, argue that the new data shows that the galaxies exhibit an explicitly fractal pattern up to a scale of about …
What is fractal and fractal dimension?
In mathematics, more specifically in fractal geometry, a fractal dimension is a ratio providing a statistical index of complexity comparing how detail in a pattern (strictly speaking, a fractal pattern) changes with the scale at which it is measured. One non-trivial example is the fractal dimension of a Koch snowflake.
Is the geometry of space-time fractal?
Asking “Is the geometry of space-time fractal?”could better be phrased: “Is there a geometry that describes space-time as fractal?” The answer is then, yes. It is being worked on.
What would happen if spacetime had only two dimensions?
If spacetime had only two dimensions, then quantum gravity would be much simpler and treatable. The problem with a two-dimensional theory is that it is unphysical, as we see four dimensions at our scales. Things can be solved combining four and two dimensions at different scales.
Is K-Minkowski spacetime a fractal geometry?
In both k-Minkowski spacetime and the quantum sphere, the dimensionality becomes non-integral, which is a typical signature of fractal geometry. Benedetti’s results match previous approaches to quantum gravity, which also point to the emergence of a ground-scale spacetime with fractal properties.
What is spacetime with quantum group symmetry?
Here, Benedetti considers two types of spacetime with quantum group symmetry – a quantum sphere and k-Minkowski spacetime – and calculates their dimensions. In both spaces, the dimensions have fractal properties at small scales, and only reach classical values at large scales.