تقرير
Probing Nonlocal Spatial Correlations in Quantum Gases with Ultra-long-range Rydberg Molecules
| العنوان: | Probing Nonlocal Spatial Correlations in Quantum Gases with Ultra-long-range Rydberg Molecules |
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| المؤلفون: | Whalen, J. D., Kanungo, S. K., Ding, R., Wagner, M., Schmidt, R., Sadeghpour, H. R., Yoshida, S., Burgdörfer, J., Dunning, F. B., Killian, T. C. |
| المصدر: | Phys. Rev. A 100, 011402 (2019) |
| سنة النشر: | 2019 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Physics - Atomic Physics, Condensed Matter - Quantum Gases |
| الوصف: | We present photo-excitation of ultra-long-range Rydberg molecules as a probe of spatial correlations in quantum gases. Rydberg molecules can be created with well-defined internuclear spacing, set by the radius of the outer lobe of the Rydberg electron wavefunction $R_n$. By varying the principal quantum number $n$ of the target Rydberg state, the molecular excitation rate can be used to map the pair-correlation function of the trapped gas $g^{(2)}(R_n)$. We demonstrate this with ultracold Sr gases and probe pair-separation length scales ranging from $R_n = 1400 - 3200$ $a_0$, which are on the order of the thermal de Broglie wavelength for temperatures around 1 $\mu$K. We observe bunching for a single-component Bose gas of $^{84}$Sr and anti-bunching due to Pauli exclusion at short distances for a polarized Fermi gas of $^{87}$Sr, revealing the effects of quantum statistics. Comment: 6 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.100.011402 |
| URL الوصول: | http://arxiv.org/abs/1903.11526 |
| رقم الأكسشن: | edsarx.1903.11526 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.100.011402 |
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