Berry phase and nonstationarity of a quantum state
β Scribed by Zeng, J.; Lei, Y.
- Book ID
- 115464034
- Publisher
- The American Physical Society
- Year
- 1995
- Tongue
- English
- Weight
- 209 KB
- Volume
- 51
- Category
- Article
- ISSN
- 1050-2947
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π SIMILAR VOLUMES
We exhibit a specific implementation of the creation of geometrical phase through the state-space evolution generated by the dynamic quantum Zeno effect. That is, a system is guided through a closed loop in Hilbert space by means a sequence of closely spaced projections leading to a phase difference
We study the relation between Chern numbers and quantum phase transitions (QPT) in the XY spin-chain model. By coupling the spin chain to a single spin, it is possible to study topological invariants associated to the coupling Hamiltonian. These invariants contain global information, in addition to