Spin-exchange collisions in hot vapors create and sustain bipartite entanglement
| Autor: | Mouloudakis, K., Kominis, I. K. |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Phys. Rev. A 103, 010401 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevA.103.L010401 |
| Popis: | Spin-exchange collisions in alkali or alkali/noble gas vapors are at the basis of quantum sensing, nucleon structure studies, tests of fundamental symmetries, and medical imaging. We here show that spin-exchange collisions in hot alkali vapors naturally produce strong bipartite entanglement, which we explicitly quantify using the tools of quantum information science. This entanglement is shown to have a lifetime at least as long as the spin-exchange relaxation time, and to directly affect measurable spin noise observables. This is a formal theoretical demonstration that a hot and dense atomic vapor can support longlived bipartite and possibly higher-order entanglement. Comment: 5 pages, 2 figures |
| Databáze: | arXiv |
| Externí odkaz: |
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