| Autor: |
Yanes, T. Hernández, Płodzień, M., Sinkevičienė, M. Mackoit, Žlabys, G., Juzeliūnas, G., Witkowska, E. |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Lett. 129, 090403 (2022) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.129.090403 |
| Popis: |
We study a production of spin-squeezed states with ultra-cold atomic fermions described by the Fermi-Hubbard model in the Mott insulating phase. We show activation of two twisting mechanisms by a position-dependent laser coupling between internal degrees of freedom of atoms. A single laser coupling simulates the one-axis twisting model with the orientation of the twisting axis determined by the coupling phase. Adding a second laser beam with a properly chosen phase paves the way to simulate the two-axis counter-twisting model, enabling to approach the Heisenberg-limited level of squeezing. |
| Databáze: |
arXiv |
| Externí odkaz: |
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