改进的动力学DMRG在周长6至9的圆柱上发现两个依赖初态和边界条件的竞争变分态:较高能态与Dirac量子自旋液体相符,而较低能态的静态与动力学性质更接近J2=0磁有序相。
- S=1/2 triangular-lattice J1-J2 Heisenberg antiferromagnet
- competing Z2 and Dirac quantum-spin-liquid candidates
- magnetic-order versus quantum-spin-liquid competition
- dynamical density-matrix renormalization group