75608 20190529115220.0 doi 10.1103/PhysRevA.96.023831 sideral 101677 ART-2017-101677 eng (orcid)0000-0002-3230-5824 Sánchez-Burillo, E. Dynamical signatures of bound states in waveguide QED 2017 Access copy available to the general public Unrestricted We study the spontaneous decay of an impurity coupled to a linear array of bosonic cavities forming a single-band photonic waveguide. The average frequency of the emitted photon is different from the frequency for single-photon resonant scattering, which perfectly matches the bare frequency of the excited state of the impurity. We study how the energy of the excited state of the impurity influences the spatial profile of the emitted photon. The farther the energy is from the middle of the photonic band, the farther the wave packet is from the causal limit. In particular, if the energy lies in the middle of the band, the wave packet is localized around the causal limit. Besides, the occupation of the excited state of the impurity presents a rich dynamics: it shows an exponential decay up to intermediate times, this is followed by a power-law tail in the long-time regime, and it finally reaches an oscillatory stationary regime. Finally, we show that this phenomenology is robust under the presence of losses, both in the impurity and in the cavities. info:eu-repo/grantAgreement/ES/MINECO/MAT2014-53432-C5-1-R info:eu-repo/grantAgreement/ES/MINECO/FIS2015-70856-P info:eu-repo/grantAgreement/ES/MINECO/FIS2014-55867-P info:eu-repo/grantAgreement/EC/FP7/258191/EU/Participative Research labOratory for Multimedia and Multilingual Information Systems Evaluation/PROMISE info:eu-repo/grantAgreement/ES/DGA/FENOL-GROUP info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.909 2017 OPTICS 23 / 94 = 0.245 2017 Q1 T1 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 12 / 36 = 0.333 2017 Q2 T2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0003-4478-1948 Zueco, D. Universidad de Zaragoza (orcid)0000-0001-9273-8165 Martín-Moreno, L. Universidad de Zaragoza García-Ripoll, J.J. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 96, 2 (2017), 023831 [10 pp] Phys. rev., A Physical Review A 2469-9926 1208673 http://zaguan.unizar.es/record/75608/files/texto_completo.pdf Versión publicada 129587 http://zaguan.unizar.es/record/75608/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:75608 articulos driver 2019-05-29-11:41:43 ARTICLE