Jump to content
Sign in to follow this  
Freeman

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?

Share this post


Link to post
Share on other sites

Are you reading this from his "Road to Reality" or the second volume of his and Rindler's book on spinors/twistors?

Share this post


Link to post
Share on other sites

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?

Share this post


Link to post
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
Sign in to follow this  

×
×
  • 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.