Abstract
The formalism of quantum optics can be adapted to advanced neutron optics. Measurements and calculations have identified a characteristic coherent and squeezed state behavior for neutron states and a transfer of coherence features between ordinary and momentum space. In certain case, the neutron occupies two well-separated regions in ordinary space which are coupled in momentum pace giving a clear fingerprint of a Schroedinger cat-like quantum state. The visualization of such states can be achieved by a Wigner function representation where it becomes obvious that wave function topography becomes feasible. Hence, spin-echo experiments are Ramsey-Borde interference experiments in the longitudinal direction, they can be described by Wigner functions as well. Additionally, it will be shown that Schroedinger cat-like states are rather fragile against any dissipative force from the environment.
Original language | English |
---|---|
Pages (from-to) | 157-160 |
Number of pages | 4 |
Journal | Physica B - Condensed Matter |
Publication status | Published - 1998 |
Research Field
- Not defined
Keywords
- Wigner function
- neutron interferometry
- spin echo
- Schroedinger-cat-like states
- decoherence
- magnetic fields
- fluctuations
- squeezed states