000044951 001__ 44951 000044951 005__ 20180327145914.0 000044951 0247_ $$2doi$$a10.1103/PhysRevLett.112.074101 000044951 0248_ $$2sideral$$a85373 000044951 037__ $$aART-2014-85373 000044951 041__ $$aeng 000044951 100__ $$0(orcid)0000-0001-7894-2426$$aNaether, U. 000044951 245__ $$aQuantum chaos in an ultrastrongly coupled bosonic junction 000044951 260__ $$c2014 000044951 5060_ $$aAccess copy available to the general public$$fUnrestricted 000044951 5203_ $$aThe semiclassical and quantum dynamics of two ultrastrongly coupled nonlinear resonators cannot be explained using the discrete nonlinear Schrödinger equation or the Bose-Hubbard model, respectively. Instead, a model beyond the rotating wave approximation must be studied. In the semiclassical limit this model is not integrable and becomes chaotic for a finite window of parameters. For the quantum dimer we find corresponding regions of stability and chaos. The more striking consequence for both semiclassical and quantum chaos is that the tunneling time between the sites becomes unpredictable. These results, including the transition to chaos, can be tested in experiments with superconducting microwave resonators. 000044951 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FIS2012-33022$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2011-25167$$9info:eu-repo/grantAgreement/ES/DGA/FENOL-GROUP$$9info:eu-repo/grantAgreement/ES/CAM/QUITEMAD-S2009-ESP-1594 000044951 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000044951 590__ $$a7.512$$b2014 000044951 591__ $$aPHYSICS, MULTIDISCIPLINARY$$b6 / 78 = 0.077$$c2014$$dQ1$$eT1 000044951 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000044951 700__ $$aGarcía-Ripoll, J.J. 000044951 700__ $$0(orcid)0000-0003-0698-6555$$aMazo, J.J.$$uUniversidad de Zaragoza 000044951 700__ $$0(orcid)0000-0003-4478-1948$$aZueco, D.$$uUniversidad de Zaragoza 000044951 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDepartamento de Física de la Materia Condensada$$cFísica de la Materia Condensada 000044951 773__ $$g112, 7 (2014), 074101 [5 pp]$$pPhys. rev. lett.$$tPHYSICAL REVIEW LETTERS$$x0031-9007 000044951 8564_ $$s1328524$$uhttps://zaguan.unizar.es/record/44951/files/texto_completo.pdf$$yVersión publicada 000044951 8564_ $$s121014$$uhttps://zaguan.unizar.es/record/44951/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000044951 909CO $$ooai:zaguan.unizar.es:44951$$particulos$$pdriver 000044951 951__ $$a2018-03-27-14:58:36 000044951 980__ $$aARTICLE