Figure 2: Design of the auxiliary and coupling cavity for simulating with polarized photons. | Nature Communications

Figure 2: Design of the auxiliary and coupling cavity for simulating with polarized photons.

From: Quantum simulation of 2D topological physics in a 1D array of optical cavities

Figure 2

(a) Two birefringent waveplates are inserted in the the auxiliary cavity. They can induce different phase delays for the two polarizations and cause transitions between them when their optical axes are properly aligned (Supplementary Note 3). Their effect is described by the Jones matrices , where the two polarizations are represented by the spin up and down and the Pauli matrix is determined by the orientation of the waveplate and its thickness. ±2πφj are the polarization-independent phase delays for the two optical paths. (b) Two waveplates with Jones matrices are inserted in the coupling cavity to manipulate the polarization of the photon when it tunnels between adjacent main cavities.

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