Burgarth, Daniel and Bose, Sougato and Bruder, Christoph and Giovannetti, Vittorio. (2009) Local controllability of quantum networks. Physical review A, General physics, Vol. 79, H. 6 , 060305, 4 S..
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Official URL: http://edoc.unibas.ch/dok/A5252810
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Abstract
We give a sufficient criterion that guarantees that a many-body quantum system can be controlled by properly manipulating the (local) Hamiltonian of one of its subsystems. The method can be applied to a wide range of systems: it does not depend on the details of the couplings but only on their associated topology. As a special case, we prove that Heisenberg and Affleck-Kennedy-Lieb-Tasaki chains can be controlled by operating on one of the spins at their ends. In principle, arbitrary quantum algorithms can be performed on such chains by acting on a single qubit.
Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder) |
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UniBasel Contributors: | Bruder, Christoph |
Item Type: | Article, refereed |
Article Subtype: | Research Article |
Publisher: | American Institute of Physics |
ISSN: | 1050-2947 |
Note: | Publication type according to Uni Basel Research Database: Journal article |
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Identification Number: | |
Last Modified: | 22 Mar 2012 14:25 |
Deposited On: | 22 Mar 2012 13:49 |
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