A What is the solution to the black hole information paradox?

  • A
  • Thread starter Thread starter wolram
  • Start date Start date
AI Thread Summary
The black hole information paradox centers on the no-hair theorem, which states that a black hole is characterized solely by its mass, electric charge, and angular momentum, with all other information, termed "hair," lost behind the event horizon. Stephen Hawking challenged this notion by suggesting that black holes do possess "hair," implying that some information is retained. This creates a conflict with quantum physics, which asserts that information cannot be destroyed. The ongoing debate among physicists revolves around whether quantum information can be encoded within these three parameters or if black holes have additional properties. Recent discussions have highlighted the paper "Soft Hair on Black Holes" as a significant contribution to this complex topic.
wolram
Gold Member
Dearly Missed
Messages
4,410
Reaction score
555
What is meant about (hair)?
 
Astronomy news on Phys.org
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".
 
  • Like
Likes wolram
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.
.
 
  • Like
Likes wolram
Publication: Redox-driven mineral and organic associations in Jezero Crater, Mars Article: NASA Says Mars Rover Discovered Potential Biosignature Last Year Press conference The ~100 authors don't find a good way this could have formed without life, but also can't rule it out. Now that they have shared their findings with the larger community someone else might find an explanation - or maybe it was actually made by life.
Today at about 4:30 am I saw the conjunction of Venus and Jupiter, where they were about the width of the full moon, or one half degree apart. Did anyone else see it? Edit: The moon is 2,200 miles in diameter and at a distance of 240,000 miles. Thereby it subtends an angle in radians of 2,200/240,000=.01 (approximately). With pi radians being 180 degrees, one radian is 57.3 degrees, so that .01 radians is about .50 degrees (angle subtended by the moon). (.57 to be more exact, but with...
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...

Similar threads

Replies
4
Views
2K
Replies
40
Views
3K
Replies
20
Views
2K
Replies
7
Views
3K
Replies
49
Views
5K
Replies
6
Views
2K
Replies
4
Views
2K
Back
Top