Strain-induced breaking of C3 symmetry, not valley coherence, drives the observed linear polarization in WS2/WSe2 moiré exciton emission.
Physically, ε represents the strain -induced inequivalence of the three local emission channels , causing inequivalence in wj
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Strain Correlated Linearly Polarized Photoluminescence in WS2/WSe2 Moir\'e Superlattices
Strain-induced breaking of C3 symmetry, not valley coherence, drives the observed linear polarization in WS2/WSe2 moiré exciton emission.