Abstract
The dynamics of a quantum system undergoing frequent measurements (quantum Zeno effect) is investigated. Using asymptotic analysis, the system is found to evolve unitarily in a proper subspace of the total Hilbert space. For measurements represented by spatial projections, the generator of the “Zeno dynamics” is the Hamiltonian with Dirichlet boundary conditions.
- Received 8 January 2001
DOI:https://doi.org/10.1103/PhysRevA.65.012108
©2001 American Physical Society
