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Published on: June 5, 2011
Light Black Holes from Light.
1University of Alberta, Department of Physics, 4-183 CCIS, Edmonton, Alberta T6G 2E1, Canada.
Black hole formation from light is unlikely under adiabatic conditions due to quantum dissipation. However, rapid energy influx, like colliding light pulses, could theoretically create black holes, even near Planck scale.
Area of Science:
- Theoretical Physics
- Quantum Field Theory
- Astrophysics
Background:
- Previous research suggested quantum dissipative effects, like vacuum polarization and the Schwinger effect, prevent black hole formation from light.
- These studies often assumed an adiabatic influx of electromagnetic energy, limiting the scope of black hole formation scenarios.
Purpose of the Study:
- To investigate the possibility of black hole formation from light, considering scenarios beyond adiabatic energy influx.
- To re-evaluate the impact of quantum dissipative effects under different energy influx conditions.
Main Methods:
- Analysis of theoretical processes involving rapidly changing influxes of electromagnetic energy.
- Consideration of idealized scenarios, such as the collision of approximately plane-wave light pulses.
Main Results:
- Agrees that adiabatic energy influx makes black hole formation from light highly implausible due to quantum dissipation.
- Demonstrates that rapidly changing energy influxes can theoretically lead to black hole formation across a wide range of sizes, down to the Planck length.
- Identifies specific theoretical processes, like colliding light pulses, as potential mechanisms for forming such black holes.
Conclusions:
- While realistic scenarios with adiabatic energy influx preclude light-induced black hole formation, non-adiabatic processes offer theoretical pathways.
- Quantum dissipation does not universally prevent black hole formation from light; the rate of energy influx is a critical factor.
- Idealized theoretical models suggest the possibility of creating micro black holes from photons under specific, albeit likely non-natural, conditions.

