具有1RSB-fullRSB转变的精确可解量子自旋玻璃模型
Exactly solvable quantum spin-glass model with 1RSB-fullRSB transition
AI总结:
本文提出一个带横向平均场随机磁体的Sherrington-Kirkpatrick量子自旋玻璃模型,严格求出全参数区自由能精确解,证明低温下存在1RSB-fullRSB转变,并指出该方法可推广到一般可解经典自旋模型的量子对应。
摘要:
我们引入了一个新的量子自旋玻璃模型,即带有横向平均场型随机磁体的Sherrington-Kirkpatrick模型。我们在整个参数区域内严格推导出该模型自由能的精确表达式。所得到的精确解意味着在低温下存在1RSB-fullRSB转变。我们的技术可应用于一般经典自旋模型,表明任何可解的经典自旋模型都有其可解的量子对应模型。
英文摘要:
We introduce a novel quantum spin-glass model, a Sherrington-Kirkpatrick model with a transverse mean-field type random magnet. We rigorously derive the exact expression of the free energy of this model at the entire parameter region. The obtained exact solution implies the existence of a 1RSB-fullRSB transition at low temperatures. Our technique can be applied to general classical spin models, telling that any solvable classical spin model has its solvable quantum counterpart.
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