2000 character limit reached
Mobility edges through inverted quantum many-body scarring (2208.01054v2)
Published 1 Aug 2022 in cond-mat.dis-nn, cond-mat.str-el, and quant-ph
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.