5. D-brane Ȧ (5 Ȧ)


 

Ising Model

 

dual
===

 

 

closed string

 


====
correspondence

 

 

open string


=====

 

Free boundary
conditions

Newmann B.C.

 

Fixed boundary conditions

Dirichlet B.C.

 

 


1. Ȧ

2. Ȧ
    ( ȭ)

3. Ȧ
    ( )

3.1 ̷ο Ȧ
          

3.2 Schwarzchild
          solution

3.3 Extremal Reissner
         -NordstrÖm solution

4. ںȦ
    (ü)

5. D-brane Ȧ
    (̷)

 

 

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