Quantum light-matter interactions in structured waveguides

Abstract

We explore special features of quantum light-matter interactions inside structured waveguides due to their finite bandwidth, band edges, and non-trivial topological properties. We model the waveguides as either a tight-binding (TB) chain or a Su-Schrieffer-Heeger (SSH) chain. For unstructured waveguides with infinite bandwidth, the transmission and reflection amplitude of a side-coupled two-level emitter (2LE) are the same as the reflection and transmission amplitude of a direct-coupled 2LE. We show that this analogy breaks down for structured waveguides with finite bandwidth due to the appearance of Lamb shift only for the direct-coupled 2LE. We further predict a robust light-emitter coupling at zero collective decay width of a single giant 2LE (with two couplings at different points) near the band edges of the structured waveguides where topological features can be beneficial. Finally, we study single-photon dynamics in a heterojunction of a long TB and short SSH waveguide connected to a 2LE at the SSH end. We show the propagation of a photon from the excited emitter to the TB waveguide only when the SSH waveguide is in the topological phase. Thus, the heterojunction acts as a quantum switch or conditional propagation channel.

arXiv comment15 pages, 11 figures

References in corpus (38)

• Topological Photonics
• Microwave photonics with superconducting quantum circuits
• Resonance Fluorescence of a Single Artificial Atom
• The Zak phase and the existence of edge states in graphene
• Superradiance for atoms trapped along a photonic crystal waveguide
• Controllable scattering of photons inside a one-dimensional resonator waveguide
• Strongly Correlated Two-Photon Transport in One-Dimensional Waveguide Coupled to A Two-Level System
• Strongly interacting photons in one-dimensional continuum
• Atom-Light Interactions in Photonic Crystals
• Theory of single-photon transport in a single-mode waveguide coupled to a cavity containing a two-level atom
• Decoherence-free interaction between giant atoms in waveguide QED
• Observation of a dissipative phase transition in a one-dimensional circuit QED lattice
• Waveguide Quantum Electrodynamics with Giant Superconducting Artificial Atoms
• Circuit QED lattices: towards quantum simulation with superconducting circuits
• Designing frequency-dependent relaxation rates and Lamb shift for a giant artificial atom
• Quantum electrodynamics near a photonic band-gap
• Unconventional quantum optics in topological waveguide QED
• Atom-atom interactions around the band edge of a photonic crystal waveguide
• Giant Cross Kerr Effect for Propagating Microwaves Induced by an Artificial Atom
• Waveguide QED: Many-Body Bound State Effects on Coherent and Fock State Scattering from a Two-Level System
• Few-photon transport in low-dimensional systems: Interaction-induced radiation trapping
• Quantum electrodynamics in a topological waveguide
• Efficient Photonic Crystal Cavity-Waveguide Couplers
• Single-photon scattering and bound states in an atom-waveguide system with two or multiple coupling points
• Few-photon optical diode
• Superconducting metamaterials for waveguide quantum electrodynamics
• Nonreciprocity realized with quantum nonlinearity
• Giant Atoms in a Synthetic Frequency Dimension
• A Fabry-Perot interferometer with quantum mirrors: nonlinear light transport and rectification
• Topology and retardation effect of a giant atom in a topological waveguide
• Correlated few-photon transport in one-dimensional waveguides: linear and nonlinear dispersions
• Interaction between giant atoms in a one-dimensional structured environment
• Quantum theory of light scattering in a one-dimensional channel: Interaction effect on photon statistics and entanglement entropy
• Critical features of nonlinear optical isolators for improved nonreciprocity
• Light propagation through one-dimensional interacting open quantum systems
• Amplification and cross-Kerr nonlinearity in waveguide quantum electrodynamics
• Coherent Control of Collective Spontaneous Emission through Self-interference
• Single photons versus coherent state input in waveguide quantum electrodynamics: light scattering, Kerr and cross-Kerr effect

Cited by in corpus (6)

• Catch and release of propagating bosonic field with non-Markovian giant atom
• Avoiding decoherence with giant atoms in a two-dimensional structured environment
• Single-photon scattering in giant-atom topological-waveguide-QED systems
• Entangling two giant atoms via a topological waveguide
• Atomic-scale on-demand photon polarization manipulation with high-efficiency for integrated photonic chips
• Giant atom with disorders: Effects from imperfect couplings