# K theory and Holography

I have a general or overview question related to charges on D- Branes lies in the K theory of Spacetime. We normally think charges of D branes lies in the Cohomology like $$D_0$$ branes couple to RR-1 form and so on.

The whole idea behind AdS/CFT duality (Maldacena' paper) is based on the fact that D-branes couple to RR form and it curves the spacetime. Can we think of this duality in terms of K-theory? By thinking in terms of K theory will give something new in this Holography business.

• What does RR stand for? – doetoe Jul 22 '19 at 23:59
• RR means Ramond Ramond form. – Hare Jul 23 '19 at 5:41