Quantum focusing conjecture

@inproceedings{Bousso2016QuantumFC,
  title={Quantum focusing conjecture},
  author={Raphael Bousso and Zachary Fisher and Stefan Leichenauer and and Aron C. Wall},
  year={2016}
}

• Raphael Bousso, Zachary Fisher, +1 author and Aron C. Wall
• Published 2016
• DOI:10.1103/PhysRevD.93.064044

We propose a universal inequality that unies the Bousso bound with the classical focussing theorem. Given a surface that need not lie on a horizon, we dene a nite generalized entropy Sgen as the area of in Planck units, plus the von Neumann entropy of its exterior. Given a null congruence N orthogonal to , the rate of change of Sgen per unit area denes a quantum expansion. We conjecture that the quantum expansion cannot increase along N. This extends the notion of universal focussing to cases… CONTINUE READING

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