使用零温量子蒙特卡罗方法达到量子自旋玻璃的基态。
Reaching the ground state of a quantum spin glass using a zero-temperature quantum Monte Carlo method.
作者信息
Das Arnab, Chakrabarti Bikas K
机构信息
The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, 34014 Trieste, Italy.
出版信息
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Dec;78(6 Pt 1):061121. doi: 10.1103/PhysRevE.78.061121. Epub 2008 Dec 19.
Here we discuss the annealing behavior of an infinite-range +/-J Ising spin glass in the presence of a transverse field using a zero-temperature quantum Monte Carlo method. Within the simulation scheme, we demonstrate that quantum annealing not only helps finding the ground state of a classical spin glass, but can also help simulating the ground state of a quantum spin glass, in particular, when the transverse field is low, much more efficiently.
在此，我们使用零温度量子蒙特卡罗方法讨论了在横向场存在的情况下，无限范围±J伊辛自旋玻璃的退火行为。在模拟方案中，我们证明量子退火不仅有助于找到经典自旋玻璃的基态，而且尤其在横向场较低时，能更有效地帮助模拟量子自旋玻璃的基态。
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