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Zeno dynamics and constraints
2004
Journal of Optics B-Quantum and Semiclassical Optics
We investigate some examples of quantum Zeno dynamics, when a system undergoes very frequent (projective) measurements that ascertain whether it is within a given spatial region. In agreement with previously obtained results, the evolution is found to be unitary and the generator of the Zeno dynamics is the Hamiltonian with hard-wall (Dirichlet) boundary conditions. By using a new approach to this problem, this result is found to be valid in an arbitrary N-dimensional compact domain. We then
doi:10.1088/1464-4266/6/6/006
fatcat:b4esxdcszvf7jkq5tyknj4seyu