Abstract:
Modern integrated photonic quantum technologies are based on optical waveguides. The propagation of light in optical waveguides allows one to implement quantum computation and bosonic quantum simulation. Nevertheless, to further develop photonic quantum devices, one needs a precise mathematical description of quantum dynamics in waveguides. In this paper, we consider a double-layer array of optical waveguides and find exact analytical expressions for the Hamiltonian of the system and its parameters. The results are obtained both in the ideal waveguide approximation and in the case of photon loss in the waveguides.
This work was supported by the Government of the Russian Federation (grant no. 08-08), by the Russian Foundation for Basic Research (project nos. 19-52-52012 MNT-a and 17-07-00994-a), and by Program no. 0066-2019-0005 of the Ministry of Science and Higher Education of the Russian Federation for the Valiev Institute of Physics and Technology of RAS.
Citation:
A. A. Melnikov, A. P. Alodjants, L. E. Fedichkin, “Tunneling in Double-Layer Optical Waveguides as Quantum Walks on Graphs”, Mathematics of Quantum Technologies, Collected papers, Trudy Mat. Inst. Steklova, 313, Steklov Math. Inst., Moscow, 2021, 154–160; Proc. Steklov Inst. Math., 313 (2021), 142–148
This publication is cited in the following 2 articles:
Roman Abramov, Leonid Fedichkin, Dmitry Tsarev, Alexander Alodjants, “High-dimensional graphs convolution for quantum walks photonic applications”, Quantum Inf Process, 23:5 (2024)
A. Kryukov, R. Abramov, E. Fedichkin, A. Alodjants, A. Melnikov, “Supervised graph classification for chiral quantum walks”, Phys. Rev. A, 105:2 (2022), 022208