Understanding many-body physics in one dimension from the Lieb–Liniger model
Jiang Yu-Zhua), b) , Chen Yang-Yanga), b) , Guan Xi-Wena), b)† 
Understanding many-body physics in one dimension from the Lieb–Liniger model |
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Jiang Yu-Zhu
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| Luttinger parameter K versus interaction strength γ . Blue dashed line: the result obtained from Eq. ( 54 ) for the strong coupling limit; red dashed line: result obtained from Eq. ( 53 ) for weak coupling regime; black solid line: the numerical result obtained from Eq. ( 51 ). The analytical result of the Luttinger parameter is in a good agreement with the numerical result. |
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