Two-dimensional chiral waveguide quantum electrodynamics: long range
qubit correlations and flat-band dark polaritons
- URL: http://arxiv.org/abs/2011.07646v1
- Date: Sun, 15 Nov 2020 22:50:25 GMT
- Title: Two-dimensional chiral waveguide quantum electrodynamics: long range
qubit correlations and flat-band dark polaritons
- Authors: Y. Marques, I. A. Shelykh, I. V. Iorsh
- Abstract summary: We investigate the nature of linear excitations in two-dimensional arrays of qubits coupled to networks of chiral waveguides.
We show that the combined effects of chirality and long-range photon mediated qubit-qubit interactions lead to the emergence of the two-dimensional flat bands in the polaritonic spectrum, corresponding to slow strongly correlated light.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We consider a two-dimensional extension of the 1D waveguide quantum
electrodynamics and investigate the nature of linear excitations in
two-dimensional arrays of qubits coupled to networks of chiral waveguides. We
show that the combined effects of chirality and long-range photon mediated
qubit-qubit interactions lead to the emergence of the two-dimensional flat
bands in the polaritonic spectrum, corresponding to slow strongly correlated
light.
Related papers
- Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide.
When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits.
We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
arXiv Detail & Related papers (2024-08-30T15:54:33Z) - Strongly interacting photons in 2D waveguide QED [0.0]
One dimensional confinement in waveguide Quantum Electrodynamics (QED) plays a crucial role to enhance light-matter interactions.
We demonstrate the occurrence of long-lived two-photon repulsive and bound states with genuine 2D features.
Our findings provide a paradigmatic signature of the presence of strong photon-photon interactions in 2D waveguide QED.
arXiv Detail & Related papers (2023-12-12T19:01:10Z) - Quantum light-matter interactions in structured waveguides [1.6295305195753724]
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 study single-photon dynamics in a heterojunction of a long TB and short SSH waveguide connected to a 2LE at the SSH end.
arXiv Detail & Related papers (2023-04-26T06:17:35Z) - Two-photon pulse scattering spectroscopy for arrays of two-level atoms,
coupled to the waveguide [125.99533416395765]
We have theoretically studied the scattering of two-photon pulses from a spatially-separated array of two-level atoms coupled to a waveguide.
The contributions of various single-eigenstate and double-excited eigenstates of the array have been analyzed.
arXiv Detail & Related papers (2023-02-27T22:05:07Z) - Photon generation and entanglement in a double superconducting cavity [105.54048699217668]
We study the dynamical Casimir effect in a double superconducting cavity in a quantum electrodynamics architecture.
We study the creation of photons when the walls oscillate harmonically with a small amplitude.
arXiv Detail & Related papers (2022-07-18T16:43:47Z) - Emergent Quasiperiodicity from Polariton-phonon Hybrid Excitations in
Waveguide Quantum Optomechanics [2.798030314600194]
We investigate polariton-phonon hybrid excitations, which describe the collective excitations of emitter-photon polaritons and vibrational phonons.
We demonstrate the emergence of an interaction-induced quasiperiodic structure caused by the interplay between phonon scatterings and waveguide-mediated long-range couplings.
arXiv Detail & Related papers (2022-07-18T12:15:08Z) - Engineering strong chiral light-matter interactions in a
waveguide-coupled nanocavity [0.0]
In the solid state, quantum emitters commonly possess circularly polarised optical transitions with spin-dependent handedness.
We demonstrate that spin-dependent chiral coupling can be realised by embedding such an emitter in a waveguide-coupled nanocavity.
arXiv Detail & Related papers (2021-08-03T12:55:49Z) - Bound photonic pairs in 2D waveguide quantum electrodynamics [0.0]
We theoretically predict the formation of two-photon bound states in a two-dimensional waveguide network hosting a lattice of two-level atoms.
The properties of these bound pairs and the exclusive domains of the parameter space where they emerge are investigated in detail.
arXiv Detail & Related papers (2021-07-28T07:35:43Z) - Quantum chaos driven by long-range waveguide-mediated interactions [125.99533416395765]
We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide.
Our calculation reveals two-polariton eigenstates that have a highly irregular wave-function in real space.
arXiv Detail & Related papers (2020-11-24T07:06:36Z) - Waveguide Bandgap Engineering with an Array of Superconducting Qubits [101.18253437732933]
We experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control.
We observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap.
The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial.
arXiv Detail & Related papers (2020-06-05T09:27:53Z) - Hyperentanglement in structured quantum light [50.591267188664666]
Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols.
Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes.
We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
arXiv Detail & Related papers (2020-06-02T18:00:04Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.