Alternatives to Calabi-Yau spaces?

Asked May 13 '20 at 16:50

Active May 13 '20 at 16:56

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Are there alternatives to Calabi-Yau spaces describing dimensions in superstring theory? If yes, what are they? If no, why?

edited May 13 '20 at 16:56

Qmechanic

asked May 13 '20 at 16:50

StenEdeback

1

Related: https://physics.stackexchange.com/q/199380/2451 , https://physics.stackexchange.com/q/4972/2451 , https://physics.stackexchange.com/q/13945/2451 , https://physics.stackexchange.com/q/24540/2451 and links therein. – Qmechanic May 13 '20 at 16:59
Hi Sten! I know I'm supposed to put this into an expanded answer form but unfortunately my circumstances don't allow me to answer in detail. I hope someone will mention it in their answers or you can look into it. There are other manifolds beyond Calabi-Yau. Most notable are the Spin(7) and $G_2$ manifolds used in the compactifcation of M-theory. Hope this helps! – Schroedinger'sDog May 16 '20 at 06:49
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Thank you, Schroedinger's dog! That is good information. I will look at Spin(7) and G2 manifolds. – StenEdeback May 17 '20 at 04:17
Thank you, Qmechanic, for links to interesting and somewhat clarifying information! – StenEdeback May 17 '20 at 04:22

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