Session W26: Quantum Control and Resources for Quantum Computing
11:15 AM–2:15 PM, Thursday, March 18, 2010
Room: D136
Sponsoring Unit:
GQI
Chair: Frank Wilhelm, University of Waterloo
Abstract ID: BAPS.2010.MAR.W26.9
Abstract: W26.00009 : Manipulation of the dynamics of many-body systems via quantum control methods
12:51 PM–1:03 PM
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Abstract 
Authors:
Julie Dinerman
(Yeshiva University)
Lea Santos
(Yeshiva University)
We investigate how dynamical decoupling methods may be used to manipulate the transport behavior of quantum many-body systems. These methods consist of sequences of unitary transformations designed to induce a desired dynamics. The systems considered for the analysis are one-dimensional spin-1/2 models, which, according to the parameters of the Hamiltonian, may be in the integrable or non-integrable limits, and in the gapped or gapless phases. Given a system in a certain regime, we develop control sequences that lead to an effective evolution typical of a system in the opposite regime, that is, a chaotic chain evolves as an integrable one and a system in the gapless phase behaves as a gapped one.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.MAR.W26.9