Jump to content

Twistors...


Recommended Posts

My head is spinning from Penrose's treatment of twistors. Isn't it essentially a special sort of spinor?

 

[math]Z^{/alpha} = (\omega^{A}, \pi_{A'})[/math] where Z is a twistor.

 

Also, why is the linear and angular momentum used? Can't I use, say, something else that satisfies: [math] \omega^{A} = i r^{AA'}\pi_{A'}[/math];

[math]\frac{\omega^{A}}{\pi_{A'}} = ir^{AA'}[/math] or am I on the wrong track totally?

Link to comment
Share on other sites

  • 3 weeks later...

I first came upon them in Three Roads to Quantum Gravity by Lee Smolin, then I dug them up in the internet.

 

I have read his book Road to Reality and from his description, it's just a more complex spinor. Rather than working with two axes, one works with four? Is that it? Or am I way off?

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.