{ "id": "1311.0169", "version": "v2", "published": "2013-11-01T12:44:37.000Z", "updated": "2014-03-10T11:44:35.000Z", "title": "Pushing the limits of the eigenstate thermalization hypothesis towards mesoscopic quantum systems", "authors": [ "Robin Steinigeweg", "Abdelah Khodja", "Hendrik Niemeyer", "Christian Gogolin", "Jochen Gemmer" ], "comment": "5 pages, 3 figures, accepted for publication in Physical Review Letters", "journal": "Phys. Rev. Lett. 112, 130403 (2014)", "doi": "10.1103/PhysRevLett.112.130403", "categories": [ "cond-mat.stat-mech", "cond-mat.str-el" ], "abstract": "In the ongoing discussion on thermalization in closed quantum many-body systems, the eigenstate thermalization hypothesis (ETH) has recently been proposed as a universal concept which attracted considerable attention. So far this concept is, as the name states, hypothetical. The majority of attempts to overcome this hypothetical character is based on exact diagonalization which implies for, e.g., spin systems a limitation to roughly 15 spins. In this Letter we present an approach which pushes this limit up to system sizes of roughly 35 spins, thereby going significantly beyond what is possible with exact diagonalization. A concrete application to a Heisenberg spin-ladder which yields conclusive results is demonstrated.", "revisions": [ { "version": "v2", "updated": "2014-03-10T11:44:35.000Z" } ], "analyses": { "subjects": [ "03.65.Yz", "05.45.Pq", "75.10.Jm" ], "keywords": [ "eigenstate thermalization hypothesis", "mesoscopic quantum systems", "exact diagonalization", "closed quantum many-body systems", "spin systems" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review Letters", "year": 2014, "month": "Apr", "volume": 112, "number": 13, "pages": 130403 }, "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvL.112m0403S" } } }