Generating maximal entanglement between spectrally distinct solid-state emitters
arXiv:1901.03631 · doi:10.1103/PhysRevLett.123.023603
Abstract
We show how to create maximal entanglement between spectrally distinct solid-state emitters embedded in a waveguide interferometer. By revealing the rich underlying structure of multi-photon scattering in emitters, we show that a two-photon input state can generate deterministic maximal entanglement even for emitters with significantly different transition energies and line-widths. The optimal frequency of the input is determined by two competing processes: which-path erasure and interaction strength. We find that smaller spectral overlap can be overcome with higher photon numbers, and quasi-monochromatic photons are optimal for entanglement generation. Our work provides a new methodology for solid-state entanglement generation, where the requirement for perfectly matched emitters can be relaxed in favour of optical state optimisation.
Main text: 6 pages, 4 figures. Supplemental information: 10 pages, 3 figures
References in corpus (6)
- Chiral Quantum Optics
- Single-Photon Switching and Entanglement of Solid-State Qubits in an Integrated Nanophotonic System
- Input-Output Formalism For Few-Photon Transport in One-Dimensional Nanophotonic Waveguides Coupled to a Qubit
- Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors
- Effect of frequency mismatched photons in quantum information processing
- Strong non-linearity-induced correlations for counter-propagating photons scattering on a two-level emitter