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Valley depolarization due to intervalley and intravalley electron-hole exchange interactions in monolayer<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mtext>MoS</mml:mtext><mml:mn>2</mml:mn></mml:msub></mml:math>
We investigate the valley depolarization due to the electron-hole exchange interaction in monolayer ${\text{MoS}}_{2}$. Both the long- and short-range parts of the intra- and intervalley electron-hole exchange interactions are calculated. We find that both the long- and short-range exchange interactions can cause the inter- and intravalley bright exciton transitions. With …