Abstract
The conventional interpretation of the recent magneto-oscillation experiments in underdoped cuprates requires that there be a state of altered translational symmetry in the pseudogap state that is not supported by structural and angle-resolved photoemission spectroscopy (ARPES) experiments. I show here that the observed oscillations may be reconciled with the conclusion arrived in ARPES experiments that the Fermi surface, suitably defined, has the shape of four arcs that shrink to four points as $T\ensuremath{\rightarrow}0$. Experiments, including infrared absorption in a magnetic field, are suggested to distinguish between such a state from that obtained by the conventional interpretation of the magneto-oscillations.
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