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Enhancing coherent transport in a photonic network using controllable decoherence
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Biggerstaff, Devon N., Heilmann, René, Zecevik, Aidan A., Gräfe, Markus, Broome, Matthew A., Fedrizzi, Alessandro, Nolte, Stefan, Szameit, Alexander, White, Andrew G. and Kassal, Ivan (2016) Enhancing coherent transport in a photonic network using controllable decoherence. Nature Communications, 7 (1). 11282. doi:10.1038/ncomms11282
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Official URL: http://dx.doi.org/10.1038/ncomms11282
Abstract
Transport phenomena on a quantum scale appear in a variety of systems, ranging from photosynthetic complexes to engineered quantum devices. It has been predicted that the efficiency of coherent transport can be enhanced through dynamic interaction between the system and a noisy environment. We report an experimental simulation of environment-assisted coherent transport, using an engineered network of laser-written waveguides, with relative energies and inter-waveguide couplings tailored to yield the desired Hamiltonian. Controllable-strength decoherence is simulated by broadening the bandwidth of the input illumination, yielding a significant increase in transport efficiency relative to the narrowband case. We show integrated optics to be suitable for simulating specific target Hamiltonians as well as open quantum systems with controllable loss and decoherence.
| Item Type: | Journal Article | ||||||||||||||||||||||||||||||
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| Subjects: | Q Science > QC Physics | ||||||||||||||||||||||||||||||
| Divisions: | Faculty of Science > Physics | ||||||||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Quantum theory, Wave guides , Hamiltonian systems, Coherent states | ||||||||||||||||||||||||||||||
| Journal or Publication Title: | Nature Communications | ||||||||||||||||||||||||||||||
| Publisher: | Nature Publishing Group | ||||||||||||||||||||||||||||||
| ISSN: | 2041-1723 | ||||||||||||||||||||||||||||||
| Official Date: | 15 April 2016 | ||||||||||||||||||||||||||||||
| Dates: |
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| Volume: | 7 | ||||||||||||||||||||||||||||||
| Number: | 1 | ||||||||||||||||||||||||||||||
| Article Number: | 11282 | ||||||||||||||||||||||||||||||
| DOI: | 10.1038/ncomms11282 | ||||||||||||||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||||||||||||||
| Access rights to Published version: | Open Access | ||||||||||||||||||||||||||||||
| RIOXX Funder/Project Grant: |
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