Excite atom-photon bound state inside the coupled-resonator waveguide coupled with a giant atom

Abstract

It is of fundamental interest in controlling the light-matter interaction for a long time in the field of quantum information processing. However, usual excitation with the propagating photon can hardly excite a localized state of light while keeping the atom under a subradiant decay in an atom-waveguide system. Here, we propose a model of coupling between a giant atom and the dynamically-modulated coupled-resonator waveguide and find that a bound state, where the light shows the localization effect and atom exhibits a subradiant decay time, can be excited by a propagating photon. An analytical treatment based on the separation of the propagating states and localized states of light has been used and provides inspiring explanation of our finding, i.e., a propagating photon can be efficiently converted to the localized light through the light-atom interactions in three resonators at frequency difference precisely equivalent to external modulation frequency. Our work therefore provides an alternative method for actively localizing the photon in a modulated coupled-resonator waveguide system interacting with giant atom, and also points out a way to study the light-atom interaction in a synthetic frequency dimension that holds the similar Hamiltonian.

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• A comprehensive review on developments of synthetic dimensions
• Single photon scattering from a chain of giant atoms coupled to a one-dimensional waveguide
• Avoiding decoherence with giant atoms in a two-dimensional structured environment
• Realizing quantum optics in structured environments with giant atoms
• Quantum optics with giant atoms in a structured photonic bath
• A giant atom with modulated transition frequency
• Atom-photon dressed states in a waveguide-QED system with multiple giant atoms
• Simulating topological materials with photonic synthetic dimensions in cavities
• Controlling photons by phonons via giant atom in a waveguide QED setup
• Non-Markovian dynamics with a driven three-level giant atom in a semi-infinite photonic waveguide
• Entangling two giant atoms via a topological waveguide
• Circuit QED with a Giant Atom Coupling to Left-handed Superlattice Metamaterials
• Dressed Interference in Giant Superatoms: Entanglement Generation and Transfer
• Simulating and probing many-body quantum states in waveguide-QED systems with giant atoms
• Harnessing spontaneous emission of correlated photon pairs from ladder-type giant atoms
• Non-Hermitian ultra-strong bosonic clustering through interaction-induced caging
• High-Order Perfect Absorption in the Absence of Exceptional Point
• Virtual Atom-Photon Bound States and Spontaneous Emission Control
• Selective band interaction and long-range hopping in a structured environment with giant atoms
• Strongly coupled giant-atom waveguide quantum electrodynamics
• Non-Markovian exceptional points in waveguide quantum electrodynamics