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The time evolution of the OPES near 1/2 for two sudden quenches [marked by (a) solid arrow ((0.5, 2) to (0.5, 1)) and (b) dashed arrow ((0.5, 2) to (−0.5, 0.1)) in Fig. 1] within phase I. The tMES are recovered eventually in (a), but not in (b). Insets in (a,b): Traces of Reff(k) in the Ry-Rz plane. The size of subsystem A is L = 100.
