Long-lived qubit entanglement by surface plasmon polaritons in a Weyl semimetal
arXiv:2206.00534 · doi:10.1103/PhysRevB.106.155409
Abstract
We investigate spontaneous entanglement of two qubits mediated by nonreciprocal surface plasmon polaritons (SPPs) in a Weyl semimetal. In the absence of external magnetic fields, the topology of the Weyl semimetal even gives rise to nonreciprocal SPPs that are topologically protected and reside inside the photonic gap. We utilize this nonreciprocal SPP as a mediator of entanglement of two spatially-separated qubits. Our two main findings are: (1) the nonreciprocal SPP gives better quantum entanglement than the reciprocal one, and (2) the achieved entanglement is sufficiently long-lived compared to the entanglement using SPPs in conventional metals.
arXiv comment24 pages in preprint format, 7 figures
References in corpus (29)
- Weyl and Dirac Semimetals in Three Dimensional Solids
- Experimental discovery of Weyl semimetal TaAs
- Optical Quantum Computing
- Discovery of a Weyl Fermion semimetal state in NbAs
- A short introduction to the Lindblad Master Equation
- Entanglement of two qubits mediated by one-dimensional plasmonic waveguides
- Electromagnetic Response of Weyl Semimetals
- Anomalous Hall Effect in Weyl Metals
- Weyl semimetal with broken time reversal and inversion symmetries
- Quantum Optics of Chiral Spin Networks
- Axion response in Weyl semimetals
- Optical evidence for a Weyl semimetal state in pyrochlore Eu2Ir2O7
- An ideal Weyl semimetal induced by magnetic exchange
- Theory of the strong coupling between quantum emitters and propagating surface plasmons
- Giant tunable nonreciprocity of light in Weyl semimetals
- Surface plasmon polaritons in topological Weyl semimetals
- Quantum theory of spontaneous and stimulated emission of surface plasmons
- Bulk-edge correspondence for topological photonic continua
- A chiral route to spontaneous entanglement generation
- Berry phase, Berry Connection, and Chern Number for a Continuum Bianisotropic Material from a Classical Electromagnetics Perspective
- Optical properties and electromagnetic modes of Weyl semimetals
- Robust entanglement with 3D nonreciprocal photonic topological insulators
- Giant Interatomic Energy-Transport Amplification with Nonreciprocal Photonic Topological Insulators
- Chern Invariants of Topological Continua; a Self-Consistent Nonlocal Hydrodynamic Model
- Tunable Surface Plasmon Polaritons in a Weyl Semimetal Waveguide
- Anomalous Phonon-mode Dependence in Polarized Raman Spectroscopy of Topological Weyl Semimetal TaP
- Surface plasmon polaritons in strained Weyl semimetals
- Negative refraction in Weyl semimetals
- Enhancement of Quantum Excitation Transport by Photonic Nonreciprocity