Analysis shows bosonic string possesses SO(26,26) symmetry through phase space quantum theory, indicating novel quantum perspectives.
We argue that duality symmetries can be manifestly realised when theories with these symmetries are quantised using phase space quantum theory. In particular, using background fields and phase space quantum theory, we quantise the bosonic string and show that it has SO(26,26) symmetry, even when the string is not compactified on a torus.
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Curtright et al. (2025) studied this question.
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