Schirmer, S.G.; Solomon, A.I. and Leahy, J.V.
|DOI (Digital Object Identifier) Link:||http://doi.org/10.1088/0305-4470/35/40/313|
|Google Scholar:||Look up in Google Scholar|
We address the question of which quantum states can be inter-converted under the action of a time-dependent Hamiltonian. In particular, we consider the problem as applied to mixed states, and investigate the difference between pure- and mixed-state controllabilities introduced in previous work. We provide a complete characterization of the eigenvalue spectrum for which the state is controllable under the action of the symplectic group. We also address the problem of which states can be prepared if the dynamical Lie group is not sufficiently large to allow the system to be controllable.
|Item Type:||Journal Article|
|Keywords:||Quantum Control; Lie Groups|
|Academic Unit/Department:||Science > Physical Sciences
|Depositing User:||Allan Solomon|
|Date Deposited:||21 Jun 2007|
|Last Modified:||14 Jan 2016 16:33|
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