Macroscopic superpositions of phase states with Bose-Einstein condensates
- Quantum superpositions of macroscopically distinguishable states having distinct phases can be created with a Bose-Einstein condensate trapped in a periodic potential. The experimental signature is contained in the phase distribution of the interference patterns obtained after releasing the traps. Moreover, in the double-well case, this distribution exhibits a dramatic dependence on the parity of the total number of atoms. We finally show that, for single-well occupations up to a few hundred atoms, the macroscopic quantum superposition can be robust enough against decoherence to be experimentally revealable within current technology.
| Author: | Francesco PiazzaORCiDGND, L. Pezzé, A. Smerzi |
|---|---|
| Frontdoor URL | https://opus.bibliothek.uni-augsburg.de/opus4/108356 |
| ISSN: | 1050-2947OPAC |
| ISSN: | 1094-1622OPAC |
| Parent Title (English): | Physical Review A |
| Publisher: | American Physical Society (APS) |
| Type: | Article |
| Language: | English |
| Year of first Publication: | 2008 |
| Publishing Institution: | Universität Augsburg |
| Release Date: | 2023/10/16 |
| Tag: | Atomic and Molecular Physics, and Optics |
| Volume: | 78 |
| Issue: | 5 |
| First Page: | 051601(R) |
| DOI: | https://doi.org/10.1103/physreva.78.051601 |
| Institutes: | Mathematisch-Naturwissenschaftlich-Technische Fakultät |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik | |
| Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Theoretische Physik III |
