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arXiv 2001.10925math-phhep-thmath.MP
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Gross-Pitaevskii方程的相空间解析解和Wigner函数

Analytical Solution for Gross-Pitaevskii Equation in Phase Space and Wigner Function

A. X. Martins, R. A. S. Paiva, G. Petronilo, R. R. Luz, S. C. Ulhoa, R. G. G. Amorim, T. M. R. Filho

摘要:

在这项工作中,我们研究了伽利略群的辛酉表示。由此导出相空间中的非线性薛定谔方程。该方法基于星积的非对易结构,并以群论方法为指导,在相空间中构造了一个物理相容的理论。该状态由与维格纳函数相关联的准概率振幅描述。在此基础上,我们求解了相空间中的Gross-Pitaevskii方程,得到了系统的Wigner函数。

英文摘要:

In this work we study symplectic unitary representations for the Galilei group. As a consequence a Non-Linear Schrödinger equation is derived in phase space. The formalism is based on the non-commutative structure of the star-product, and using the group theory approach as a guide a physically consistent theory is constructed in phase space. The state is described by a quasi-probability amplitude that is in association with the Wigner function. With these results, we solve the Gross-Pitaevskii equation in phase space and obtained the Wigner function for the system considered.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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