What is the solution to the black hole information paradox?

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SUMMARY

The black hole information paradox centers on the no-hair theorem, which asserts that a black hole is characterized solely by its mass, electric charge, and angular momentum, with all other information (referred to as "hair") lost beyond the event horizon. Stephen Hawking challenged this notion by proposing that black holes possess "hair," suggesting that some information consumed by a black hole may be retained. This paradox raises significant questions in quantum physics, particularly regarding the preservation of quantum information, which cannot be solely defined by the three parameters of mass, charge, and spin. A recent paper titled "Soft Hair on Black Holes" presents potential solutions to this ongoing debate.

PREREQUISITES
  • Understanding of the no-hair theorem in black hole physics
  • Familiarity with quantum information theory
  • Basic knowledge of black hole properties: mass, charge, and angular momentum
  • Awareness of Stephen Hawking's contributions to theoretical physics
NEXT STEPS
  • Read the paper "Soft Hair on Black Holes" available at http://arxiv.org/abs/1601.00921
  • Explore the implications of quantum information preservation in black hole physics
  • Investigate the historical context and development of the no-hair theorem
  • Study recent advancements in black hole thermodynamics and information theory
USEFUL FOR

The discussion is beneficial for theoretical physicists, astrophysicists, and students interested in the complexities of black hole mechanics and quantum information theory.

wolram
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What is meant about (hair)?
 
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wolram said:
What is meant about (hair)?
The only info, according to the no-hair theorem, that we can get from a Black Hole is only about its mass, electric charge and angular momentum because all other info (which was called hair) gets lost behind the event horizon.
Steven Hawking stated that black holes do have hair and he proposed that at least some of the information devoured by a black hole is stored in "hair".
 
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The 'hair' of a black hole relates to the notion that a black hole has only three properties - mass, charge and angular momentum. This is commonly referred to as the no hair theorem formulated by John Wheeler [who blamed it on Jacob Bekenstein]. In quantum physics, this violates the principle that quantum information must cannot be destroyed. However, information, as defined under quantum physics cannot be encoded using only these three parameters, thus leading to the black hole information paradox. The only apparent solution to this paradox is either that quantum information can be encoded using only mass, charge and spin, or, that black holes have other definable properties. Physicists have argued the 'information paradox' for decades, but, an entirely satisfactory resolution has proven elusive. An attempt offered by this paper: http://arxiv.org/abs/1601.00921, Soft Hair on Black Holes. has been a hot topic in the physics community lately.
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