Geometrical effects on energy transfer in disordered open quantum systems
We explore various design principles for efficient excitation energy transport in complex quantum systems. We investigate energy transfer efficiency in randomly disordered geometries consisting of up to 20 chromophores to explore spatial and spectral properties of small natural/artificial Light-Harv...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Institute of Physics (AIP)
2015
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| Online Access: | http://hdl.handle.net/1721.1/97597 |
| _version_ | 1826204582826475520 |
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| author | Shabani, A. Omar, Yasser Rabitz, H. Mohseni, Masoud Lloyd, Seth |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Shabani, A. Omar, Yasser Rabitz, H. Mohseni, Masoud Lloyd, Seth |
| author_sort | Shabani, A. |
| collection | MIT |
| description | We explore various design principles for efficient excitation energy transport in complex quantum systems. We investigate energy transfer efficiency in randomly disordered geometries consisting of up to 20 chromophores to explore spatial and spectral properties of small natural/artificial Light-Harvesting Complexes (LHC). We find significant statistical correlations among highly efficient random structures with respect to ground state properties, excitonic energy gaps, multichromophoric spatial connectivity, and path strengths. These correlations can even exist beyond the optimal regime of environment-assisted quantum transport. For random configurations embedded in spatial dimensions of 30 Å or 50 Å, we observe that the transport efficiency saturates to its maximum value if the systems contain around 7 or 14 chromophores, respectively. Remarkably, these optimum values coincide with the number of chlorophylls in the Fenna-Matthews-Olson protein complex and LHC II monomers, respectively, suggesting a potential natural optimization with respect to chromophoric density. |
| first_indexed | 2024-09-23T12:57:45Z |
| format | Article |
| id | mit-1721.1/97597 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:57:45Z |
| publishDate | 2015 |
| publisher | American Institute of Physics (AIP) |
| record_format | dspace |
| spelling | mit-1721.1/975972022-09-28T11:09:30Z Geometrical effects on energy transfer in disordered open quantum systems Shabani, A. Omar, Yasser Rabitz, H. Mohseni, Masoud Lloyd, Seth Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Research Laboratory of Electronics Mohseni, Masoud Lloyd, Seth We explore various design principles for efficient excitation energy transport in complex quantum systems. We investigate energy transfer efficiency in randomly disordered geometries consisting of up to 20 chromophores to explore spatial and spectral properties of small natural/artificial Light-Harvesting Complexes (LHC). We find significant statistical correlations among highly efficient random structures with respect to ground state properties, excitonic energy gaps, multichromophoric spatial connectivity, and path strengths. These correlations can even exist beyond the optimal regime of environment-assisted quantum transport. For random configurations embedded in spatial dimensions of 30 Å or 50 Å, we observe that the transport efficiency saturates to its maximum value if the systems contain around 7 or 14 chromophores, respectively. Remarkably, these optimum values coincide with the number of chlorophylls in the Fenna-Matthews-Olson protein complex and LHC II monomers, respectively, suggesting a potential natural optimization with respect to chromophoric density. United States. Defense Advanced Research Projects Agency. QuBE Program National Science Foundation (U.S.) Institute for Scientific Interchange NEC Corporation Lockheed Martin Intel Corporation Project IT-PQuantum Portuguese Science and Technology Foundation (Programme POCTI/POCI/PTDC) Portuguese Science and Technology Foundation (Project SFRH/BPD/71897/2010) Portuguese Science and Technology Foundation (Project PEst-OE/EEI/LA0008/2013) Portuguese Science and Technology Foundation (Project PTDC/EEA-TEL/103402/2008 QuantPrivTel) Seventh Framework Programme (European Commission) (Grant Agreement 318287) 2015-07-01T14:33:03Z 2015-07-01T14:33:03Z 2013-05 2012-12 Article http://purl.org/eprint/type/JournalArticle 00219606 1089-7690 http://hdl.handle.net/1721.1/97597 Mohseni, M., A. Shabani, S. Lloyd, Y. Omar, and H. Rabitz. “Geometrical Effects on Energy Transfer in Disordered Open Quantum Systems.” The Journal of Chemical Physics 138, no. 20 (2013): 204309. en_US http://dx.doi.org/10.1063/1.4807084 The Journal of Chemical Physics Creative Commons Attribution 3.0 Unported Licence http://creativecommons.org/licenses/by/3.0/ application/pdf American Institute of Physics (AIP) AIP |
| spellingShingle | Shabani, A. Omar, Yasser Rabitz, H. Mohseni, Masoud Lloyd, Seth Geometrical effects on energy transfer in disordered open quantum systems |
| title | Geometrical effects on energy transfer in disordered open quantum systems |
| title_full | Geometrical effects on energy transfer in disordered open quantum systems |
| title_fullStr | Geometrical effects on energy transfer in disordered open quantum systems |
| title_full_unstemmed | Geometrical effects on energy transfer in disordered open quantum systems |
| title_short | Geometrical effects on energy transfer in disordered open quantum systems |
| title_sort | geometrical effects on energy transfer in disordered open quantum systems |
| url | http://hdl.handle.net/1721.1/97597 |
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