Quantum Physics, CERN and Hawking radiation

MatthewBaker

http://lifeboat.com/blog/2011/06/dear-dr-hawking

Hey guys, my quantum physics is not powerful enough to understand this guy... Can anyone help me out with this one?

Thanks LW

http://lifeboat.com/blog/2011/06/dear-dr-hawking

Hey guys, my quantum physics is not powerful enough to understand this guy... Can anyone help me out with this one?

Thanks LW

the known laws of physics are symmetrical under t=-t.

This is probably not correct. We know that CP symmetry is broken. There are good theoretical reasons to believe that CPT symmetry holds. Consequently T symmetry must be broken.

To quote from here:

Fredkin has suggested [here] that CPT symmetry is an immediate consequence of T symmetry - i.e. that inverting T has as its consequence inverting the parity and charge of all particles.

...for the reason to think that it is T symmetry, not CPT symmetry that holds.

Charge and Parity are likely to be implemented using internal rotation or sequences - and so will reverse automatically if T=>-T. We don't have to manually reverse particle momenta or spin if we are running things backwards. That happens automatically. The idea is that ... (read more)