Observation of Noise-Assisted Transport in an All-Optical Cavity-Based Network

Year: 2015

Authors: Viciani S., Lima M., Bellini M., Caruso F.

Autors Affiliation: CNR, INO, I-50125 Florence, Italy; European Lab Nonlinear Spect, I-50019 Sesto Fiorentino, Italy; Univ Florence, Dipartimento Fis & Astron, I-50019 Sesto Fiorentino, Italy; QSTAR, I-50125 Florence, Italy.

Abstract: Recent theoretical and experimental efforts have shown the remarkable and counterintuitive role of noise in enhancing the transport efficiency of complex systems. Here, we realize simple, scalable, and controllable optical fiber cavity networks that allow us to analyze the performance of transport networks for different conditions of interference, dephasing, and disorder. In particular, we experimentally demonstrate that the transport efficiency reaches a maximum when varying the external dephasing noise, i.e., a bell-like shape behavior that had been predicted only theoretically. These optical platforms are very promising simulators of quantum transport phenomena and could be used, in particular, to design and test optimal topologies of artificial light-harvesting structures for future solar energy technologies.

Journal/Review: PHYSICAL REVIEW LETTERS

Volume: 115 (8)      Pages from: 083601-1  to: 083601-5

More Information: The authors gratefully acknowledge fruitful discussions with P. Scudo and R. Fusco. This work was supported by the Future in Research (FIRB) Programme of the Italian Ministry of Education, University and Research (MIUR), under the FIRB-MIUR Grant Agreement No. RBFR10M3SB, and performed in the framework of the ENI Contract No. 3500023215. The work of F. C. has been also supported by a Marie Curie Career Integration Grant within the 7th European Community Framework Programme, under the Grant Agreement QuantumBioTech No. 293449.
KeyWords: Complex networks; Optical fibers; Quantum electronics; Solar energy, Artificial light harvesting; Optical fiber cavity; Optical platforms; Optimal topologies; Quantum transport; Solar energy technologies; Transport efficiency; Transport networks, Quantum chemis
DOI: 10.1103/PhysRevLett.115.083601

Citations: 57
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