Reflection by two level system: phase singularities on the Poincar\'e
hypersphere
- URL: http://arxiv.org/abs/2301.03247v1
- Date: Mon, 9 Jan 2023 10:25:34 GMT
- Title: Reflection by two level system: phase singularities on the Poincar\'e
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- Authors: Ben Lang, Edmund Harbord and Ruth Oulton
- Abstract summary: We consider the reflection of a photon by a two-level system in a quasi-one-dimensional waveguide.
This is important in part because it forms the backdrop for more complicated proposals where many emitters are coupled to the waveguide.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We consider the reflection of a photon by a two-level system in a
quasi-one-dimensional waveguide. This is important in part because it forms the
backdrop for more complicated proposals where many emitters are coupled to the
waveguide: leading to super and subradiant coupling even when the emitters are
distant. The incorporation of chiral effects, for example unidirectional
emission of dipole emitters, has already led to rich physics such as dimer
coupling. However, chirality is not the only effect of the dipole, as we
explore from a phase singularity perspective. We demonstrate that control of
the dipole allows a rich variety of control of the phase and amplitude of the
scattered light in both directions. This expands the scope for the physics of
1D chains of emitters.
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