Counting states in heterotic SO(32) string theory | A First Course in String Theory

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c) Calculate the total number of states in heterotic string theory (bosons plus fermions) at .

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— This answer is my guess. —

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spacetime bosons:

Number of states:

Let , the number of ways to put n indistinguishable balls into k boxes.

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Following the same logic:

Postulating a unique vacuum , the creation operators allow us to construct degenerate Ramond ground states.

Therefore, there are ground states .

— Me@2018-10-29 03:11:07 PM

Number of states:

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spacetime fermions:

Number of states:

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Number of states:

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— This answer is my guess. —

— Me@2019-01-03 05:26:59 PM

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2019.01.03 Thursday (c) All rights reserved by ACHK