至此我们已经将哈密顿量完全对角化,得到了Ising模型的精确解。哈密顿量的对角化形式为: \begin{equation} \begin{aligned} H&=\sum_{k>0}{\varepsilon _k\left( \eta _{k}^{\dagger}\eta _k-\eta _{-k}\eta _{-k}^{\dagger} \right)}\\ &=\sum_{k>0}{\varepsilon _k\left( \eta...
We study the transverse-field Ising model with infinite-range coupling and spontaneous emission on every site. We find that there is spin squeezing in steady state due to the presence of the transverse field. This means that there is still entanglement, despite the decoherence from spontaneous ...
The ground-state properties of the S=1/2 transverse-field Ising model on the checkerboard lattice are studied using linear spin-wave theory. We consider the general case of different couplings between nearest neighbors (J1) and next-to-nearest neighbors (J2). In zero field, the system ...
2) transverse crystal field dilution Ising model 横向晶场稀疏Ising模型 1. Phase transition behaviors and magnetizations of three-dimensional transverse crystal field dilution Ising model; 三维横向晶场稀疏Ising模型的相变行为及磁化3) transverse random crystal field Ising model 横向随机晶场Ising模型 1...
内容提示: Test of quantum thermalization in thetwo-dimensional transverse-f i eld Ising modelBenjamin Blaß 1,* and Heiko Rieger 1,†1 Theoretical Physics, Saarland University, 66123 Saarbrücken, Germany* bebla@lusi.uni-sb.de† h.rieger@mx.uni-saarland.deABSTRACTWe study the quantum ...
We consider the random transverse-field Ising model in d = 3 dimensions with long-range ferromagnetic interactions which decay as a power α > d with the distance. Using a variant of the strong-disorder renormalization group method we study numerically the phase-transition point from the paramagne...
The Ising Model with a Transverse Field The Ising model with a transverse field has been investigated for both positive and negative exchange interactions. Effective Hamiltonians are used for a p... K Hattori - 《Journal of Physics C Solid State Physics》 被引量: 215发表: 1974年 Ising Model...
The ground state properties of the S=1/2 transverse-field Ising model on the checkerboard lattice are studied using linear spin wave theory. We consider th... H Bieraugel,BC Borer,UK Pandit - 《Heterocyclic Communications》 被引量: 0发表: 1995年 Magic-state resource theory for the ground ...
We show that when acting on gauge-invariant operators built out of scalars, the 1-loop dilatation operator is equivalent to the spin chain Hamiltonian of the 1D Ising model in a transverse magnetic field, which is a nontrivial integrable system that is exactly solvable at finite length. ...
The one-dimensional transverse field Ising model is solved by continuous unitary transformations in the high-field limit. A high accuracy is reached due to the closure of the relevant algebra of operators, which we call string operators. The closure is related to the possibility to map the model...