Title |
Enhancing coherent transport in a photonic network using controllable decoherence
|
---|---|
Published in |
Nature Communications, April 2016
|
DOI | 10.1038/ncomms11282 |
Pubmed ID | |
Authors |
Devon N. Biggerstaff, René Heilmann, Aidan A. Zecevik, Markus Gräfe, Matthew A. Broome, Alessandro Fedrizzi, Stefan Nolte, Alexander Szameit, Andrew G. White, Ivan Kassal |
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. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United Kingdom | 2 | 33% |
Germany | 1 | 17% |
Grenada | 1 | 17% |
Unknown | 2 | 33% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 4 | 67% |
Members of the public | 2 | 33% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 1% |
Austria | 1 | 1% |
Unknown | 91 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 20 | 22% |
Researcher | 20 | 22% |
Professor | 10 | 11% |
Student > Master | 8 | 9% |
Student > Postgraduate | 7 | 8% |
Other | 16 | 17% |
Unknown | 12 | 13% |
Readers by discipline | Count | As % |
---|---|---|
Physics and Astronomy | 63 | 68% |
Chemistry | 7 | 8% |
Engineering | 6 | 6% |
Energy | 1 | 1% |
Agricultural and Biological Sciences | 1 | 1% |
Other | 2 | 2% |
Unknown | 13 | 14% |