Zero Fourier modes in circular photonic waveguide networks create a protected subspace that enables perfect state transfer to the diametrically opposite site when the number of sites N equals 4n.
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Perfect state transfer in quantum photonic networks based on Fourier modes
Zero Fourier modes in circular photonic waveguide networks create a protected subspace that enables perfect state transfer to the diametrically opposite site when the number of sites N equals 4n.
- Decoherence-free subspaces in the noisy dynamics of discrete-step quantum walks in a photonic lattice