duality between M/F-theory and heterotic string theory


This entry is about M-theory/F-theory compactified on K3-surfaces. For M-theory on MO9-planes see instead at Hořava-Witten theory.



A duality in string theory:

F-theoryKK-compactified” on an elliptically fibered K3 with a section is supposed to be equivalent to heterotic string theory KK-compactified on a 2-torus.

More generally, F-theory on a complex nn-dimensional XX fibered XBX\to B with elliptic K3-fibers is supposed to be equivalent to heterotic string theory on an elliptically fibered Calabi-Yau manifold ZBZ \to B of complex dimension (n1)(n-1).

A detailed discussion of the equivalence of the respective moduli spaces is originally due to (Friedman-Morgan-Witten 97). A review of this is in (Donagi 98).

From the abstract of (Donagi 98).

The heterotic string compactified on an (n1)(n-1)-dimensional elliptically fibered Calabi-Yau ZBZ \to B is conjectured to be dual to F-theory compactified on an nn-dimensional Calabi-Yau XBX \to B, fibered over the same base with elliptic K3 fibers. In particular, the moduli of the two theories should be isomorphic. The cases most relevant to the physics are n=2n=2, 33, 44, i.e. the compactification is to dimensions d=8d=8, 66 or 44 respectively. Mathematically, the richest picture seems to emerge for n=3n=3, where the moduli space involves an analytically integrable system whose fibers admit rather different descriptions in the two theories.


From M-branes to F-branes to heterotic strings and NS5-branes

from M-branes to F-branes: superstrings, D-branes and NS5-branes

M-theory on S A 1×S B 1S^1_A \times S^1_B-elliptic fibrationKK-compactification on S A 1S^1_Atype IIA string theoryT-dual KK-compactification on S B 1S^1_Btype IIB string theoryF-theory on elliptically fibered-K3 fibrationduality between F-theory and heterotic string theoryheterotic string theory on elliptic fibration
M2-brane wrapping S A 1S_A^1double dimensional reduction \mapstotype IIA superstring\mapstotype IIB superstring\mapstoheterotic superstring
M2-brane wrapping S B 1S_B^1\mapstoD2-brane\mapstoD1-brane
M2-brane wrapping pp times around S A 1S_A^1 and qq times around S B 1S_B^1\mapstopp strings and qq D2-branes\mapsto(p,q)-string
M5-brane wrapping S A 1S_A^1double dimensional reduction \mapstoD4-brane\mapstoD5-brane
M5-brane wrapping S B 1S_B^1\mapstoNS5-brane\mapstoNS5-brane\mapstoNS5-brane
M5-brane wrapping pp times around S A 1S_A^1 and qq times around S B 1S_B^1\mapstopp D4-brane and qq NS5-branes\mapsto(p,q)5-brane
M5-brane wrapping S A 1×S B 1S_A^1 \times S_B^1\mapsto\mapstoD3-brane
KK-monopole/A-type ADE singularity (degeneration locus of S A 1S^1_A-circle fibration, Sen limit of S A 1×S B 1S^1_A \times S^1_B elliptic fibration)\mapstoD6-brane\mapstoD7-branesA-type nodal curve cycle degenertion locus of elliptic fibration ADE 2Cycle (Sen 97, section 2)SU-gauge enhancement
KK-monopole orientifold/D-type ADE singularity\mapstoD6-brane with O6-planes\mapstoD7-branes with O7-planesD-type nodal curve cycle degenertion locus of elliptic fibration ADE 2Cycle (Sen 97, section 3)SO-gauge enhancement
exceptional ADE-singularity\mapsto\mapstoexceptional ADE-singularity of elliptic fibration\mapstoE6-, E7-, E8-gauge enhancement

(e.g. Johnson 97, Blumenhagen 10)

Non-reducible heterotic E 8E_8-gauge backgrounds

There are some F-theory backgrounds whose supposed dual in heterotic string theory involves an E8-principal connection which is not reducible to Spin(16)/ 2Spin(16)/\mathbb{Z}_2 (Distler-Sharpe 10, section 5), while in fact the traditional construction of the heterotic worldsheet theory only covers this case. In (Distler-Sharpe 10, section 7-8) it is argued that therefore a more general formulation of heterotic string theory needs to involve parameterized WZW models. See also at heterotic string – Properties – General gauge backgrounds and parameterized WZW models.

F-theory KK-compactified on elliptically fibered complex analytic fiber Σ\Sigma

dim (Σ)dim_{\mathbb{C}}(\Sigma)1234
F-theoryF-theory on CY2F-theory on CY3F-theory on CY4


For type IIA and M-theory

The conjectured duality between type IIA string theory KK-compactified on K3 times an n-torus and heterotic string theory on the (n+2)(n+2)-torus is originally due to

Review includes

Further discussion includes

Specifically in relation to the putative K-theory-classification of D-brane charge:

Specifically in M-theory on G2-manifolds:

Specifically in relation to Moonshine:

For F-theory

Discussion for F-theory includes

Review of (Friedman-Morgan-Witten 97) is in

with more details in

The issue with non-reducible E 8E_8-gauge connections is highligted in

Last revised on October 26, 2018 at 09:29:09. See the history of this page for a list of all contributions to it.