9-13 July 2012
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=11&confId=14"><font color=#ff0000>SAIP2012 PROCEEDINGS AVAILABLE</font></a>

Decoherence-assisted transport in quantum networks

11 Jul 2012, 17:30
20m
Oral Presentation Track G - Theoretical and Computational Physics Theoretical

Speakers

Ms Adriana Marais (Quantum Research Group, School of Chemistry and Physics and National Institute for Theoretical Physics, University of KwaZulu-Natal, Durban, 4001, South Africa) Dr Ilya Sinayskiy (Quantum Research Group, School of Chemistry and Physics and National Institute for Theoretical Physics, University of KwaZulu-Natal, Durban, 4001, South Africa)

Apply to be<br> consider for a student <br> &nbsp; award (Yes / No)?

Yes

Main supervisor (name and email)<br>and his / her institution

Prof. Francesco Petruccione (petruccione@ukzn.ac.za)

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Abstract content <br> &nbsp; (Max 300 words)

The dynamics of a quantum network under the influence of decoherence is studied. This work is a generalisation of previous research on decoherence-assisted transport in a dimer system [I. Sinayskiy, A. Marais, F. Petruccione and A. Ekert, Phys. Rev. Lett. 108, 020602 (2012)]. The model under investigation consists of a homogenous fully connected quantum network in contact with an environment of spins. Exact analytical expressions for the transition probabilities are obtained. It is shown that there exist well-defined ranges of parameters for which decoherent interactions with the environment assist energy transfer in the quantum network. This model of decoherence assisted energy transfer is applied to energy transfer in the Fenna-Matthews-Olson complex.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD)?

PhD

Primary author

Ms Adriana Marais (Quantum Research Group, School of Chemistry and Physics and National Institute for Theoretical Physics, University of KwaZulu-Natal, Durban, 4001, South Africa)

Co-authors

Prof. Francesco Petruccione (Quantum Research Group, School of Chemistry and Physics and National Institute for Theoretical Physics, University of KwaZulu-Natal, Durban, 4001, South Africa) Dr Ilya Sinayskiy (Quantum Research Group, School of Chemistry and Physics and National Institute for Theoretical Physics, University of KwaZulu-Natal, Durban, 4001, South Africa)

Presentation Materials

Peer reviewing

Paper