Non-equilibrium delocalization-localization transition of photons in circuit QED

Abstract

We show that photons in two tunnel-coupled microwave resonators each containing a single superconduct- ing qubit undergo a sharp non-equilibrium delocalization-localization (self-trapping) transition due to strong photon-qubit coupling. We find that dissipation favors the self-trapped regime and leads to the possibility of observing the transition as a function of time without tuning any parameter of the system. Furthermore, we find that self-trapping of photons in one of the resonators (spatial localization) forces the qubit in the opposite resonator to remain in its initial state (energetic localization). This allows for an easy experimental observation of the transition by local read-out of the qubit state.

arXiv comment4 pages, 5 figures

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• Quantum simulations and many-body physics with light
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• Photon condensation in circuit QED by engineered dissipation
• Steady-state entanglement of spatially separated qubits via quantum bath engineering
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• Emission characteristics of laser-driven dissipative coupled-cavity systems
• The upside of noise: engineered dissipation as a resource in superconducting circuits
• Photon transfer in ultrastrongly coupled three-cavity arrays
• Nonequilibrium phases in hybrid arrays with flux qubits and NV centers
• Repulsively induced photon super-bunching in driven resonator arrays
• Coupling spin ensembles via superconducting flux qubits
• Two coupled nonlinear cavities in a driven-dissipative environment
• Quantum phase transition in an array of coupled dissipative cavities
• Recurrent delocalization and quasi-equilibration of photons in coupled circuit QED systems
• Photon-assisted Landau-Zener transitions in a periodically driven Rabi dimer coupled to a dissipative mode
• Stochastic Differential Equations for Quantum Dynamics of Spin-Boson Networks
• Non-linear transport in an out-of-equilibrium single-site Bose Hubbard model: scaling, rectification and time dynamics
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• Open source Matrix Product States: Exact diagonalization and other entanglement-accurate methods revisited in quantum systems
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• Equilibrium and Disorder-induced behavior in Quantum Light-Matter Systems
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• Cavity-loss induced plateau in coupled cavity QED array
• Engineering indefinitely long-lived localization in cavity-QED arrays
• Frustrated polaritons
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• Ab initio description of nonlinear dynamics of coupled microdisk resonators with application to self-trapping dynamics
• Quantum interference induced photon localisation and delocalisation in coupled cavities
• Synchronization of Networked Jahn-Teller Systems in Circuit QED
• Selftrapping triggered by losses in cavity QED
• Engineering Photon Delocalization in a Rabi Dimer with a Dissipative Bath
• Uncontrolled disorder effects in fabricating photonic quantum simulators on a kagome geometry: A projected-entangled pair state versus exact digonalization analysis
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• Emergence of chaos and controlled photon transfer in a cavity-QED network
• Dissipative chaos and steady state of open Tavis-Cummings dimer
• Quantum superposition of localized and delocalized phases of photons
• Perfect Quantum State Transfer in Glauber-Fock Cavity Array
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• Symmetric excitation and de-excitation of a cavity QED system
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• Atomic switch for control of heat transfer in coupled cavities
• Photon-assisted Landau Zener transitions in a tunable driven Rabi dimer coupled to a micromechanical resonator
• Out-of-equilibrium physics in driven dissipative coupled resonator arrays
• Localization and delocalization dynamics of photons in linearly coupled cavity arrays