Path integral molecular dynamics for thermodynamics and Green's function of ultracold spinor bosons
| العنوان: | Path integral molecular dynamics for thermodynamics and Green's function of ultracold spinor bosons |
|---|---|
| المؤلفون: | Yongle Yu, Shujuan Liu, Hongwei Xiong, Yunuo Xiong |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Condensed Matter::Quantum Gases, Quantum Physics, Statistical Mechanics (cond-mat.stat-mech), Quantum Gases (cond-mat.quant-gas), General Physics and Astronomy, FOS: Physical sciences, Physical and Theoretical Chemistry, Computational Physics (physics.comp-ph), Quantum Physics (quant-ph), Condensed Matter - Quantum Gases, Physics - Computational Physics, Condensed Matter - Statistical Mechanics |
| الوصف: | Most recently, the path integral molecular dynamics has been successfully used to consider the thermodynamics of single-component identical bosons and fermions. In this work, the path integral molecular dynamics is developed to simulate the thermodynamics, Green's function and momentum distribution of two-component bosons in three dimensions. As an example of our general method, we consider the thermodynamics of up to sixteen bosons in a three-dimensional harmonic trap. For noninteracting spinor bosons, our simulation shows a bump in the heat capacity. As the repulsive interaction strength increases, however, we find the gradual disappearance of the bump in the heat capacity. We believe this simulation result can be tested by ultracold spinor bosons with optical lattices and magnetic-field Feshbach resonance to tune the inter-particle interaction. We also calculate Green's function and momentum distribution of spinor bosons. Our work facilitates the exact numerical simulation of spinor bosons, whose property is one of the major problems in ultracold Bose gases. 20 pages, 8 figures, Accepted by The Journal of Chemical Physics |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c36438b3ef302739b9d55e9a5207ff7 http://arxiv.org/abs/2207.07653 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....5c36438b3ef302739b9d55e9a5207ff7 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |