PDF《两尺度的量子临界  》

0 0.1 0.2 1/L 0.00 0.05 0.10 0.15 κ

0 50

100 L 0.0 0.2 0.4 0.6 ρs L

0 50

100 L 0.10 0.12 0.14 0.16 χL

0 0.1 0.2 1/L 1.5 1.6 1.7 ε=1+ν/ν'

0 0.05 0.1 1/L 0.1 0.2 ε=1-ν/ν'

0 0.05 0.1 1/L 0.0 0.1 0.2 ε=1-ν/ν' (a) domain wall energy (b) spin stiffness (c) susceptibility 我们的发现可能在更多具有多尺度的强关联系统中应用, 甚至可能帮助解开 高温超导问题中标度行为的谜团. ? [1] T. Senthil, A. Vishwanath, L. Balents, S. Sachdev, and M. P. A. Fisher, Deconfined Quantum Critical Points, Science 303,

1490 (2004). [2] A. W. Sandvik, Evidence for Deconfined Quantum Criticality in a Two-Dimensional Heisenberg Model with Four-Spin Interactions, Phys. Rev. Lett. 98,

227202 (2007). [3] A. Nahum, J. T. Chalker, P. Serna, M. Ortu?o, and A. M. Somoza, Deconfined Quantum Criticality, Scaling Violations, and Classical Loop Models, Phys. Rev. X. 5,

041048 (2015). [4] H. Shao, W.-A. Guo, and A. W. Sandvik, Quantum Criticality with Two Length Scales, Science 10.1126/science.aad5007 (2016). [5] Y. Tang and A. W. Sandvik, Method to Characterize Spinons as Emergent Elementary Particles, Phys. Rev. Lett. 107,

157201 (2011).