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arXiv · 2208.01054

Mobility edges through inverted quantum many-body scarring

N. S. Srivatsa·Hadi Yarloo·Roderich Moessner·Anne E. B. Nielsen
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Abstract

We show that the rainbow state, which has volume law entanglement entropy for most choices of bipartitions, can be embedded in a many-body localized spectrum. For a broad range of disorder strengths in the resulting model, we numerically find a narrow window of highly entangled states in the spectrum, embedded in a sea of area law entangled states. The construction hence embeds mobility edges in many-body localized systems. This can be thought of as the complement to many-body scars, an `inverted quantum many-body scar', providing a further type of setting where the eigenstate thermalization hypothesis is violated.

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N. S. Srivatsa, Hadi Yarloo, Roderich Moessner, Anne E. B. Nielsen. 2022-08-01. Mobility edges through inverted quantum many-body scarring. https://doi.org/10.1103/physrevb.108.l100202

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