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| Main Authors: | , , , |
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| Format: | Preprint |
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2020
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2010.14935 |
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| _version_ | 1866917595284766720 |
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| author | Tiwari, Tarush Shrivastava, Kuldeep K Roy, Dibyendu Singh, Rajeev |
| author_facet | Tiwari, Tarush Shrivastava, Kuldeep K Roy, Dibyendu Singh, Rajeev |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2010_14935 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | A modified quasi-classical analysis to capture the effects of strong interaction in open QED lattices Tiwari, Tarush Shrivastava, Kuldeep K Roy, Dibyendu Singh, Rajeev Quantum Physics Statistical Mechanics 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. |
| title | A modified quasi-classical analysis to capture the effects of strong interaction in open QED lattices |
| topic | Quantum Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2010.14935 |