A recent paper on the insulating state of monolayer $\text{W}{\text{Te}}_2$ reported the observation of large oscillations in the conductivity that are periodic in $1/B$, resembling quantum oscillations in metals. This remarkable observation has inspired suggestions of exotic physics such as spin-charge separation. We show that a rather more conventional but still nontrivial explanation in terms of gap modulation may be possible in a model of an excitonic insulator subject to a magnetic field.

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• 2-dimensional systems
• Dirac semimetal
• Fermionic condensates
• Strongly correlated systems
• Transition metal dichalcogenides