Discrete Single-Photon Quantum Walks with Tunable Decoherence
| Title: | Discrete Single-Photon Quantum Walks with Tunable Decoherence |
| Author: |
Broome, M. A.; Fedrizzi, A.; Lanyon, B. P.; Kassal, Ivan; Aspuru-Guzik, Alan; White, A. G.
Note: Order does not necessarily reflect citation order of authors. |
| Citation: | Broome, M. A., A. Fedrizzi, B. P. Lanyon, Ivan Kassal, Alan Aspuru-Guzik, and A. G. White. 2010. Discrete single-photon quantum walks with tunable decoherence. Physical Review Letters 104(15): 153602. |
| Full Text & Related Files: |
1002.4923v2.pdf (2.666Mb; PDF) 
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| Abstract: | Quantum walks have a host of applications, ranging from quantum computing to the simulation of biological systems. We present an intrinsically stable, deterministic implementation of discrete quantum walks with single photons in space. The number of optical elements required scales linearly with the number of steps. We measure walks with up to 6 steps and explore the quantum-to-classical transition by introducing tunable decoherence. Finally, we also investigate the effect of absorbing boundaries and show that decoherence significantly affects the probability of absorption. |
| Published Version: | doi: 10.1103/PhysRevLett.104.153602 |
| Other Sources: | http://arxiv.org/abs/1002.4923 |
| Terms of Use: | This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP |
| Citable link to this page: | http://nrs.harvard.edu/urn-3:HUL.InstRepos:4657438 |
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