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Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry

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Stellar Equilibrium in Semiclassical Gravity.

Raúl Carballo-Rubio^1,2,3

¹SISSA, International School for Advanced Studies, Via Bonomea 265, 34136 Trieste, Italy.

Physical Review Letters

|February 27, 2018

Summary

This summary is machine-generated.

Researchers explored quantum vacuum polarization

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Area of Science:

Theoretical physics
Quantum field theory
General relativity

Background:

Quantum vacuum polarization in gravitational fields is known but its spacetime backreaction is understudied.
Existing research is limited to homogeneous cosmological models.

Purpose of the Study:

To derive semiclassical stellar equilibrium equations including quantum vacuum polarization backreaction.
To find exact solutions for relativistic stars incorporating these semiclassical effects.

Main Methods:

Utilized quantum field theory in curved spacetimes.
Employed the s-wave Polyakov approximation.
Derived generalized Tolman-Oppenheimer-Volkoff equations.

Main Results:

Derived generalized semiclassical equations for stellar equilibrium.
Obtained the first exact solutions for relativistic stars with nonperturbative semiclassical backreaction.
Identified solutions as a combination of black star and gravastar concepts.

Conclusions:

Quantum vacuum polarization significantly impacts relativistic stellar structure.
The derived solutions offer new insights into compact object physics.
This work bridges quantum field theory and general relativity in astrophysics.