Modified helicity-trace indices for charged sectors of AdS3/CFT2 produce the Cardy/Bekenstein-Hawking entropy, reproducing Larsen-Martinec in the T^4 case and resolving the earlier HS2 mismatch in half-integer winding sectors.
Stringy CFT Duals with $\mathcal{N} = (2,2)$ Supersymmetry
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abstract
It was recently shown that string theory on $\mathrm{AdS}_3 \times \mathrm{S}^3 \times \mathbb{T}^4$ with minimal NS-NS flux ($k = 1$) is exactly dual to the symmetric orbifold of T4. Here we show that a similar statement also holds for the $D_n$ orbifolds of these backgrounds that have $\mathcal{N} = (2, 2)$ supersymmetry. In this case the CFT dual is the symmetric orbifold of $\mathbb{T}^4/D_n$.
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Topologically charged BPS microstates in AdS$_3$/CFT$_2$
Modified helicity-trace indices for charged sectors of AdS3/CFT2 produce the Cardy/Bekenstein-Hawking entropy, reproducing Larsen-Martinec in the T^4 case and resolving the earlier HS2 mismatch in half-integer winding sectors.