A modified quasi-classical analysis to capture the effects of strong interaction in open QED lattices

• URL: http://arxiv.org/abs/2010.14935v2
• Date: Wed, 21 Feb 2024 05:15:00 GMT
• Title: A modified quasi-classical analysis to capture the effects of strong interaction in open QED lattices
• Authors: Tarush Tiwari, Kuldeep K Shrivastava, Dibyendu Roy, Rajeev Singh
• Abstract summary: We investigate the role of optical nonlinearity in light propagation through two different one-dimensional open QED lattices. We show a reduction of light transmission with increasing intensity in these lattices due to effective photon-photon interactions and related photon blockade mediated by nonlinearity in qubits.
• Score: 1.4767716319267
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate the role of optical nonlinearity in light propagation through two different one-dimensional open QED lattices, namely a chain of qubits with direct coupling between the nearest neighbors and a chain of connected resonators to each of which a qubit is side-coupled. Using the more accurate truncated Heisenberg-Langevin equations method we show a reduction of light transmission with increasing intensity in these lattices due to effective photon-photon interactions and related photon blockade mediated by nonlinearity in qubits. In contrast to the direct-coupled qubits, we find a revival in the light transmission in the side-coupled qubits at relatively higher intensities due to saturation of qubits by photons. We find that in absence of bulk dissipation the standard quasi-classical analysis fails to capture the reduction in light transmission due to effective photon-photon interaction. We then devise a systemic method to modify the quasi-classical analysis to give much better results.

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