{ "id": "2103.07481", "version": "v1", "published": "2021-03-12T19:00:04.000Z", "updated": "2021-03-12T19:00:04.000Z", "title": "Transitions in entanglement complexity in random quantum circuits by measurements", "authors": [ "Salvatore F. E. Oliviero", "Lorenzo Leone", "Alioscia Hamma" ], "categories": [ "quant-ph", "math-ph", "math.MP" ], "abstract": "Random Clifford circuits doped with non Clifford gates exhibit transitions to universal entanglement spectrum statistics[1] and quantum chaotic behavior. In [2] we proved that the injection of $O(n)$ non Clifford gates into a $n-$qubit Clifford circuit drives the transition towards the universal value of the purity fluctuations. In this paper, we show that doping a Clifford circuit with $O(n)$ single qubit non Clifford measurements is both necessary and sufficient to drive the transition to universal fluctuations of the purity.", "revisions": [ { "version": "v1", "updated": "2021-03-12T19:00:04.000Z" } ], "analyses": { "keywords": [ "random quantum circuits", "entanglement complexity", "transition", "non clifford gates", "single qubit non clifford measurements" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }