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Fermionic rational conformal field theories and modular linear differential equations

Abstract:
We define modular linear differential equations (MLDE) for the level-two congruence subgroups Γθ⁠, Γ0(2) and Γ0(2) of SL2(Z)⁠. Each subgroup corresponds to one of the spin structures on the torus. The pole structures of the fermionic MLDEs are investigated by exploiting the valence formula for the level-two congruence subgroups. We focus on the first- and second-order holomorphic MLDEs without poles and use them to find a large class of “fermionic rational conformal field theories” (fermionic RCFTs), which have non-negative integer coefficients in the q-series expansion of their characters. We study the detailed properties of these fermionic RCFTs, some of which are supersymmetric. This work also provides a starting point for the classification of the fermionic modular tensor category.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1093/ptep/ptab033

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Mathematical Institute
Role:
Author


Publisher:
Physical Society of Japan
Journal:
Progress of Theoretical and Experimental Physics More from this journal
Volume:
2021
Issue:
8
Article number:
08B104
Publication date:
2021-03-10
Acceptance date:
2020-02-17
DOI:
EISSN:
2050-3911


Language:
English
Keywords:
Pubs id:
1171743
Local pid:
pubs:1171743
Deposit date:
2021-09-07

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