000063180 001__ 63180
000063180 005__ 20190529115213.0
000063180 0247_ $$2doi$$a10.1103/PhysRevLett.111.243602
000063180 0248_ $$2sideral$$a84402
000063180 037__ $$aART-2013-84402
000063180 041__ $$aeng
000063180 100__ $$aPeropadre, Borja
000063180 245__ $$aNonequilibrium and Nonperturbative Dynamics of Ultrastrong Coupling in Open Lines
000063180 260__ $$c2013
000063180 5060_ $$aAccess copy available to the general public$$fUnrestricted
000063180 5203_ $$aThe time and space resolved dynamics of a qubit with an Ohmic coupling to propagating 1D photons is studied, from weak coupling to the ultrastrong coupling regime. A nonperturbative study based on matrix product states shows the following results, (i) The ground state of the combined systems contains excitations of both the qubit and the surrounding bosonic field. (ii) An initially excited qubit equilibrates through spontaneous emission to a state, which under certain conditions is locally close to that ground state, both in the qubit and the field. (iii) The resonances of the combined qubit-photon system match those of the spontaneous emission process and also the predictions of the adiabatic renormalization [A.¿J. Leggett et al., Rev. Mod. Phys. 59, 1 (1987)]. Finally, nonperturbative ab initio calculations show that this physics can be studied using a flux qubit galvanically coupled to a superconducting transmission line.
000063180 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FIS2012-33022$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2011-25167$$9info:eu-repo/grantAgreement/EC/FP7/258191/EU/Participative Research labOratory for Multimedia and Multilingual Information Systems Evaluation/PROMISE$$9info:eu-repo/grantAgreement/ES/CAM/QUITEMAD-S2009-ESP-1594
000063180 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000063180 590__ $$a7.728$$b2013
000063180 591__ $$aPHYSICS, MULTIDISCIPLINARY$$b6 / 78 = 0.077$$c2013$$dQ1$$eT1
000063180 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000063180 700__ $$0(orcid)0000-0003-4478-1948$$aZueco, David$$uUniversidad de Zaragoza
000063180 700__ $$aPorras, Diego
000063180 700__ $$aGarcía-Ripoll, Juan José
000063180 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000063180 773__ $$g111 (2013), 243602$$pPhys. rev. lett.$$tPhysical Review Letters$$x0031-9007
000063180 8564_ $$s705422$$uhttps://zaguan.unizar.es/record/63180/files/texto_completo.pdf$$yVersión publicada
000063180 8564_ $$s129200$$uhttps://zaguan.unizar.es/record/63180/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000063180 909CO $$ooai:zaguan.unizar.es:63180$$particulos$$pdriver
000063180 951__ $$a2019-05-29-11:40:06
000063180 980__ $$aARTICLE