Ultrastrongly dissipative quantum Rabi model

David Zueco and Juanjo García-Ripoll
Phys. Rev. A 99, 013807 – Published 3 January 2019

Abstract

We discuss both the spectrum and the dynamics of cavity QED in the presence of dissipation beyond the standard perturbative treatment of losses. Using the dynamical polaron ansatz and matrix-product state simulations, we discuss the case where both light-matter g coupling and system-bath interaction are in the ultra-strong-coupling regime. We provide a critical g for the onset of Rabi oscillations. Besides, we demonstrate that the qubit is dressed by the cavity and dissipation. Such a dressing governs the dynamics and, thus, it can be measured. Finally, we sketch an implementation for our theoretical ideas within circuit QED technology.

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  • Received 24 July 2018

DOI:https://doi.org/10.1103/PhysRevA.99.013807

©2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & OpticalQuantum Information, Science & Technology

Authors & Affiliations

David Zueco

  • Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales de Aragon, CSIC-Universidad de Zaragoza, E-50009 Zaragoza, Spain and Fundación ARAID, Paseo María Agustín 36, E-50004 Zaragoza, Spain

Juanjo García-Ripoll

  • Instituto de Física Fundamental, IFF-CSIC, Calle Serrano 113b, Madrid E-28006, Spain

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Issue

Vol. 99, Iss. 1 — January 2019

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