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Dp-branes in string theory (conventional) a p-dimensional object to which the end pointsof the open strings attach.NDOpenString(part) Defined by the open string boundary conditions∂ X µ= 0σ (Neumann)σ =0µδX 0 or ∂ µ= 0 (Dirichlet)=0σ =0 =τXσD-brane The D-brane worldvolume effective action for the massless sector is theDBI action:SDBI~µ νab a b µν∫p+1 −Φd ξ e − det( Gab+ Bab+ 2πα' Fab)µ νBab= ∂aX ∂bX BµνG= ∂X∂XGHere comes your footerPage 18
D-branes in double field theory (Double D-branes)[Hull, hep-th/0406102][Lawrence et al., hep-th/0605149] Defined by O(n,n) covariant projectors Π N and Π D on the worldsheetboundary: From the boundary term of double field worldsheet action variationarises the boundary conditions(Neumann)(SD constraint)(Dirichlet)Here comes your footerPage 19
Page 1 and 2: Towards the Double Field Theoryfor
Page 3 and 4: Outline of this talk Introduction D
Page 5 and 6: T-duality Important as it relates d
Page 7 and 8: T-duality as O(n,n;Z) transformatio
Page 9 and 10: Examples of O(2,2;Z) transformation
Page 11 and 12: Hull‘s doubled formalism Since T-
Page 13 and 14: Hull geometrizes the T-fold on the
Page 15 and 16: One can define a natural O(n,n;Z) i
Page 17: In fact, Tseytlin already found the
Page 21 and 22: Conditions for the projectors Proje
Page 23 and 24: Examples: n=2 case D-brane pairD0-D
Page 25 and 26: What’s this D-brane configuration
Page 27 and 28: [1006.4823] Quick glance at Hull-Zw
Page 30 and 31: We are going to quantize a chiral-c
Page 32 and 33: The reduced notation for the extend
Page 34 and 35: The boundary interaction term corre
Page 36 and 37: In the end, the equation of motion
Page 38 and 39: This may be due to that the B-field
Page 40: Thank YouHere comes your footer Pag

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