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Browsing by Author "Liao, Yu-Jie"

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    高階張量重整化群在二維橫場易辛模型的應用
    (2024) 廖育捷; Liao, Yu-Jie
    本研究深入探討了二維橫場易辛模型(2D Transverse Field Ising Model, 2D TFIM)在正方晶格上的相變行為,透過張量網路方法來求得其磁化率的高階動差。易辛模型作為凝態物理中的一個基本模型,已被廣泛用於研究鐵磁性和反鐵磁性等物質的相變。本次研究透過二維的無限時間演化區塊分解(2D Infinite Time-Evolving Block Decimation, 2D ITEBD )[1]來得到二維橫場易辛模型的基態,再透過高階張量重整化群(Higher-Order Tensor Renormalization Group ,HOTRG) [2]來計算磁化率的高階矩並且透過磁化率的高階矩來計算Binder ratio來決定系統的相變點。在未來可以計算其他熱力學性質如相關長度和比熱,更進一步完整這份研究。

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