Multimer states in multilevel waveguide QED
arXiv:2406.12390 · doi:10.1103/PhysRevA.110.053707
Abstract
We study theoretically the interplay of spontaneous emission and interactions for the multiple-excited quasistationary eigenstates in a finite periodic array of multilevel atoms coupled to the waveguide. We develop an analytical approach to calculate such eigenstates based on the subradiant dimer basis. Our calculations reveal the peculiar multimerization effect driven by the anharmonicity of the atomic potential: while a general eigenstate is an entangled one, there exist eigenstates that are products of dimers, trimers, or tetramers, depending on the size of the system and the fill factor. At half-filling, these product states acquire a periodic structure with all-to-all connections inside each multimer and become the most subradiant ones.
arXiv comment5 pages, 4 figures + Supplementary
References in corpus (21)
- Area laws for the entanglement entropy - a review
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- QuTiP: An open-source Python framework for the dynamics of open quantum systems
- A Quantum Engineer's Guide to Superconducting Qubits
- Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
- Supersolid formation in a quantum gas breaking continuous translational symmetry
- Strongly interacting photons in one-dimensional continuum
- Exponential improvement in photon storage fidelities using subradiance and "selective radiance" in atomic arrays
- Quantum Optics of Chiral Spin Networks
- Quantum dynamics of propagating photons with strong interactions: a generalized input-output formalism
- Theory of Subradiant States of a One-Dimensional Two-Level Atom Chain
- Coherent control of a symmetry-engineered multi-qubit dark state in waveguide quantum electrodynamics
- A scalable superconducting quantum simulator with long-range connectivity based on a photonic bandgap metamaterial
- Pattern Formation in Quantum Ferrofluids: from Supersolids to Superglasses
- Matter--wave emission in optical lattices: Single particle and collective effects
- Waveguide Bandgap Engineering with an Array of Superconducting Qubits
- Rapid Phase Retrieval by Lasing
- Photon control and coherent interactions via lattice dark states in atomic arrays
- Formation of Matter-Wave Polaritons in an Optical Lattice
- Dissipative stabilization of dark quantum dimers via squeezed vacuum
- Strongly interacting photons in 2D waveguide QED