The Reality Conditions
The Immirzi parameter arises in the process of expressing a Lorentz connection with noncompact group SO(3,1) in terms of a complex connection with values in a compact group of rotations, either SO(3) or its double cover SU(2). Although named after Giorgio Immirzi, the possibility of including this parameter was first pointed out by Fernando Barbero. The significance of this parameter remained obscure until the spectrum of the area operator in LQG was calculated. It turns out that the area spectrum is proportional to the Immirzi parameter.
Read more about this topic: Immirzi Parameter
Famous quotes containing the words reality and/or conditions:
“She’s in the house.
She’s at turn after turn.
She’s behind me.
She’s in front of me.
She’s in my bed.
She’s on path after path,
and I’m weak from want of her.
O heart,
there is no reality for me
other than she she
she she she she
in the whole of the reeling world.
And philosophers talk about Oneness.”
—Amaru (c. seventh century A.D.)
“My dear young friend ... civilization has absolutely no need of nobility or heroism. These things are symptoms of political inefficiency. In a properly organized society like ours, nobody has any opportunities for being noble or heroic. Conditions have got to be thoroughly unstable before the occasion can arise.”
—Aldous Huxley (1894–1963)