继续计算可知: \begin{equation} \begin{aligned} \left[ \begin{matrix} c_{k}^{\dagger}& c_{-k}\\ \end{matrix} \right] \mathcal{H} _k\left[ \begin{array}{c} c_k\\ c_{-k}^{\dagger}\\ \end{array} \right] &=\left[ \begin{matrix} \eta _{k}^{\dagger}& \eta _...
A real space RG method is used to study the quantum Ising chain in a real and complex symmetry breaking field. The later case corresponds to the study the Yang-Lee edge singularity of the equivalent classical Ising model.doi:10.1016/0304-8853(80)90864-1K. Uzelac...
This is supported by mapping the system to the 1D transverse field Ising model. Finally we examine the effect of magnetic fields. We find that a magnetic field can alter the electrostatic phase transition producing a ferroelectric groundstate, solely through its effect of shifting the eigenenergies...
[4]Li B W, Wu Y K, Mei Q X, et al. Probing critical behavior of long-range transverse-field Ising model through quantum Kibble-Zurek mechanism[J]. PRX Quantum, 2023, 4(1): 010302. [5]Harty T P, Allcock D T C, Ballance C J, et a...
Tricritical behavior and magnetic properties for a mixed spin-1 and spin-3/2 transverse Ising model with a crystal field An effective-field theory is developed for a mixed Ising system, consisting of spin 1 and spin 3/2 with different anisotropies in a transverse field on a h... W Jiang...
These advances push the long-range interacting systems from the theoretical playground to the field relevant to practical applications. One of the examples of controllable 1D long-range interacting spin systems is the following long-range transverse Ising model: $$H=\sum _{i\,{<}\,j}\frac{{...
The use of such a representation simplifies the study and derivation of the model static and low-temperature quantities. Moreover, a related pseudofermion representation is used in that section to compute the spin longitudinal and transverse dynamical structure factors in the vicinity of their spectra...
We use a quantum simulator composed of up to 53 qubits to study a non-equilibrium phase transition in the transverse field Ising model of magnetism, in a regime where conventional statistical mechanics does not apply. The qubits are ... J Zhang,G Pagano,PW Hess,... - 《Nature》 被引量...
materials, honeycomb iridatesβ-Li2IrO333andγ-Li2IrO334. In both materials the low temperature phase is magnetically ordered without field and under ambient pressure. Namely, the Kitaev QSL is derived through a melting of the magnetic ordering by field or pressure. Therefore, it is crucial to...
For pioneering contributions to physics research and impactful industrial applications in radiation medical imaging, advancing the field by successfully translating research results into groundbreaking real-world technologies. Anatoli Polkovnikov 2024 recipient, Division of Atomic, Molecu...