• Corpus ID: 118760738

SETI at Planck Energy: When Particle Physicists Become Cosmic Engineers

@article{Lacki2015SETIAP,
  title={SETI at Planck Energy: When Particle Physicists Become Cosmic Engineers},
  author={Brian C. Lacki},
  journal={arXiv: High Energy Astrophysical Phenomena},
  year={2015}
}
  • B. Lacki
  • Published 4 March 2015
  • Physics
  • arXiv: High Energy Astrophysical Phenomena
What is the meaning of the Fermi Paradox -- are we alone or is starfaring rare? Can general relativity be united with quantum mechanics? The searches for answers to these questions could intersect. It is known that an accelerator capable of energizing particles to the Planck scale requires cosmic proportions. The energy required to run a Planck accelerator is also cosmic, of order 100 M_sun c^2 for a hadron collider, because the natural cross section for Planck physics is so tiny. If aliens are… 

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References

SHOWING 1-10 OF 18 REFERENCES
Lunar detection of ultra-high-energy cosmic rays and neutrinos
The origin of the most energetic particles in nature, the ultra-high-energy (UHE) cosmic rays, is still a mystery. Due to their extremely low flux, even the 3,000 km^2 Pierre Auger detector registers
Some Speculations on the Ultimate Planck Energy
The inability to achieve in the present universe, via electromagnetic or gravitational acceleration, Planck energies for elementary particles is suggested on the basis of several, some relatively
LHC Physics Potential vs. Energy: Considerations for the 2011 Run
Parton luminosities are convenient for estimating how the physics potential of Large Hadron Collider experiments depends on the energy of the proton beams. I quantify the advantage of increasing the
Limits from CGRO/EGRET Data on the Use of Antimatter as a Power Source by Extraterrestrial Civilizations
I argue that the existence of cold antimatter in bulk is not permitted by the Standard Model, so that if a gamma-ray signature from antiproton annihilation were to be detected, it must represent
The early Universe and the cosmic microwave background
It is easy to do an experiment in a laboratory on Earth and to check the results and calculations for correctness. If you doubt the results are correct, the experiment can be repeated. Our study of
Upper Bound on the Energy of Particles and Their Secondary Neutrinos
We derive an upper limit to the energy of nuclei accelerated via the Fermi mechanism in any relativistic shockwave, driven by any astrophysical engine. This bound is accessible to current and
The Cepheid galactic internet
We propose that a sufficiently advanced civilisation may employ Cepheid variable stars as beacons to transmit all-call information throughout the galaxy and beyond. They might employ a pulsed
Homogeneous cosmology with aggressively expanding civilizations
In the context of a homogeneous Universe, we note that the appearance of aggressively expanding advanced life is geometrically similar to the process of nucleation and bubble growth in a first-order
Anisotropies in ultrahigh energy cosmic rays
The present status of anisotropy studies for the highest energy cosmic rays is presented including the first full sky survey. Directions and prospects for the future are also discussed in light of
Is the Planck momentum attainable
We present evidence that an interplay of the laws of microphysics and cosmology renders the Planck momentum unattainable by an elementary particle. Several categories of accelerators are analyzed and
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