Nonreciprocal and chiral single-photon scattering for giant atoms

Abstract

Quantum optics with giant atoms has provided a new paradigm to study photon scatterings. In this work, we investigate the nontrivial single-photon scattering properties of giant atoms being an effective platform to realize nonreciprocal and chiral quantum optics. For two-level giant atoms, we identify the condition for nonreciprocal transmission: the external atomic dissipation is further required other than the breaking of time-reversal symmetry by local coupling phases. Especially, in the non-Markovian regime, unconventional revival peaks periodically appear in the reflection spectrum. To explore more interesting scattering behaviors, we extend the two-level giant-atom system to Δ-type and {\nabla}-type three-level giant atoms coupled to double waveguides with different physical mechanisms to realize nonreciprocal and chiral scatterings. Our proposed giant-atom structures have potential applications of high-efficiency targeted routers that can transport single photons to any desired port deterministically and circulators that can transport single photons between four ports in a cyclic way.

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Cited by in corpus (26)

• Chiral and nonreciprocal single-photon scattering in a chiral-giant-molecule waveguide-QED system
• Complex decoherence-free interactions between giant atoms
• Non-Markovian dynamics with a giant atom coupled to a semi-infinite photonic waveguide
• Quantum interference and controllable magic cavity QED via a giant atom in coupled resonator waveguide
• Correlated two-photon scattering in a one-dimensional waveguide coupled to two- or three-level giant atoms
• Catch and release of propagating bosonic field with non-Markovian giant atom
• Avoiding decoherence with giant atoms in a two-dimensional structured environment
• Anomalous Long-Distance Coherence in Critically-Driven Cavity Magnonics
• Realizing quantum optics in structured environments with giant atoms
• A giant atom with modulated transition frequency
• Giant Emitters in a Structured Bath with Non-Hermitian Skin Effect
• Single-photon scattering in giant-atom waveguide systems with chiral coupling
• Non-Markovian dynamics with a driven three-level giant atom in a semi-infinite photonic waveguide
• Circuit QED with a Giant Atom Coupling to Left-handed Superlattice Metamaterials
• Harnessing spontaneous emission of correlated photon pairs from ladder-type giant atoms
• Unconventional and robust light-matter interactions based on the non-Hermitian skin effect
• Chiral phase modulation and tunable broadband perfect absorber using the coherent cold atomic ensemble
• Limits of single-photon storage in a single $\Lambda$-type atom
• Giant atom with disorders: Effects from imperfect couplings
• Giant atoms coupled to waveguide: Continuous coupling and multiple excitations
• Chirality, Nonreciprocity and Symmetries for a Giant Atom
• Enhancing Nonreciprocity through Squeezing-Induced Symmetry Breaking
• Routing single photons with quantum emitters coupled to nanostructures
• Strongly coupled giant-atom waveguide quantum electrodynamics
• Non-Markovian exceptional points in waveguide quantum electrodynamics
• Nonreciprocity enhanced Quantum Gyroscopes based on Surface Acoustic Waves