Theory of waveguide-QED with moving emitters

Abstract

We theoretically study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace, treating the emitter motional degree of freedom quantum mechanically. We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy. We then characterize the bound states within the bandgap, which display a motion-induced asymmetric phase in real space. We also demonstrate how these bound states form a continuous band with exotic dispersion relations. Finally, we study the spontaneous emission of an initially excited quantum emitter with various initial momentum distributions, finding strong deviations with respect to the static emitter counterpart both in the occupation dynamics and in the spatial distribution of the emitted photons. Our work extends the waveguide-QED toolbox by including the quantum motional degree of freedom of emitters, whose impact in the few-photon dynamics could be harnessed for quantum technologies.

arXiv comment13 + 5 pages, 17 figures

References in corpus (45)

• The Quantum Internet
• Chiral Quantum Optics
• A single-photon transistor using nano-scale surface plasmons
• Controllable scattering of photons inside a one-dimensional resonator waveguide
• Superradiance for atoms trapped along a photonic crystal waveguide
• Theory of single-photon transport in a single-mode waveguide coupled to a cavity containing a two-level atom
• Subwavelength vacuum lattices and atom-atom interactions in photonic crystals
• Optical diode based on the chirality of guided photons
• Unconventional quantum optics in topological waveguide QED
• Atom-atom interactions around the band edge of a photonic crystal waveguide
• 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
• Atom-field dressed states in slow-light waveguide QED
• Few-photon optical diode
• Non-exponential decay via tunneling in tight-binding lattices and the optical Zeno effect
• Scattering in the ultrastrong regime: nonlinear optics with one photon
• Spontaneous Emission in a Matter-Wave Open Quantum System
• Bound states in boson impurity models
• Non-reciprocal few-photon devices based on chiral waveguide-emitter couplings
• Nanowire photonic crystal waveguides for single-atom trapping and strong light-matter interactions
• Matter--wave emission in optical lattices: Single particle and collective effects
• Photon localization versus population trapping in a coupled-cavity array
• Dynamical signatures of bound states in waveguide QED
• Protecting entanglement by adjusting the velocities of moving qubits inside non-Markovian environments
• Microwave Control of Atomic Motion in Optical Lattices
• Simulating quantum-optical phenomena with cold atoms in optical lattices
• Near-ground-state cooling of atoms optically trapped 300nm away from a hot surface
• Quantum Computation with Diatomic Bits in Optical Lattices
• Correlated motion of two atoms trapped in a single mode cavity field
• Complex Energy Spectrum and Time Evolution of QBIC States in a Two-Channel Quantum wire with an Adatom Impurity
• Observation of ultra-strong spin-motion coupling for cold atoms in optical microtraps
• Phase Diagram for Magnon Condensate in Yttrium Iron Garnet Film
• Amplification of non-Markovian decay due to bound state absorption into continuum
• Chiral quantum optics in photonic sawtooth lattices
• Quantum simulators based on the global collective light-matter interaction
• Quantum acousto-optic control of light-matter interactions in nanophotonic networks
• Light-Mediated Collective Atomic Motion in an Optical Lattice Coupled to a Membrane
• Generalized Hartree-Fock-Bogoliubov Description of the Frohlich Polaron
• Heating in Nanophotonic Traps for Cold Atoms
• Strong coupling between moving atoms and slow-light Cherenkov photons
• Acoustic Traps and Lattices for Electrons in Semiconductors
• Quantum Motional State Tomography with Non-Quadratic Potentials and Neural Networks
• Preparation of circular Rydberg states in helium with $n\ge 70$ using a modified version of the crossed-fields method
• Circumventing Magnetic Reciprocity: a Diode for Magnetic Fields
• Efficient single photon absorption by a trapped moving atom

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• Photon-emitter dressed states in a closed waveguide