Schreiber, A., Cassemiro, K.N., Potocek, V., Gábris, A., Jex, I. and Silberhorn, C. (2011) Decoherence and disorder in quantum walks: from ballistic spread to localization. Physical Review Letters, 106(18), p. 180403. (doi: 10.1103/PhysRevLett.106.180403)
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Publisher's URL: http://dx.doi.org/10.1103/PhysRevLett.106.180403
Abstract
We investigate the impact of decoherence and static disorder on the dynamics of quantum particles moving in a periodic lattice. Our experiment relies on the photonic implementation of a one-dimensional quantum walk. The pure quantum evolution is characterized by a ballistic spread of a photon’s wave packet along 28 steps. By applying controlled time-dependent operations we simulate three different environmental influences on the system, resulting in a fast ballistic spread, a diffusive classical walk, and the first Anderson localization in a discrete quantum walk architecture.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | No |
| Glasgow Author(s) Enlighten ID: | Potocek, Dr Vaclav |
| Authors: | Schreiber, A., Cassemiro, K.N., Potocek, V., Gábris, A., Jex, I., and Silberhorn, C. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review Letters |
| Journal Abbr.: | Phys. Rev. Lett. |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| ISSN (Online): | 1079-7114 |
| Related URLs: |
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