Microwave control of coupling parameters in spinor alkali condensates
| Autor: | Cheianov, V., Chudnovskiy, A. L. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We propose a protocol which utilises radio frequency magnetic pulses in order to tune the effective two-particle scattering amplitudes for alkali atoms in the $F=1$ hyperfine ground state. Unlike the Feshbach resonance method, the proposed protocol preserves with controllable accuracy the global rotational symmetry in the spin space offering access to a broad region of the phase diagram of the rotationally-symmetric spinor Bose condensate. Examples of $^{41}$K and $^{7}$Li are considered and it is shown that for these atoms sufficient variation in the effective coupling constants can be achieved in order to explore phase transitions between different symmetry-broken phases of the condensate. Comment: 5 pages, 3 Figures |
| Databáze: | arXiv |
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