Antiferromagnetic Ising chain in a mixed transverse and longitudinal magnetic field
Antiferromagnetic Ising chain in a mixed transverse and longitudinal magnetic field
We have studied the antiferromagnetic Ising chain in a transverse magnetic field ${h}_{x}$ and uniform longitudinal field ${h}_{z}.$ Using the density-matrix renormalization group calculation combined with a finite-size scaling the ground-state phase diagram in ${(h}_{x}{,h}_{z})$ plane is determined. It is shown that there is an order-disordered transition line in this …