activity
20042023
most citedMany-body Green's function theory of ferromagnetic Heisenberg systems with single-ion anisotropies in more than one direction

27 citations · 152 across the 12 of their papers we have counts for

collaborators

12 papers

quant-ph2023★ 7 cited

A generalized scattering theory in quantum mechanics

Huai-Yu Wang

In quantum mechanics textbooks, a single-particle scattering theory is introduced. In the present work, a generalized scattering theory is presented, which can be in principle appl…

physics.gen-ph2023★ 2 cited

Liouville equation in statistical mechanics is not applicable to gases composed of colliding molecules

Huai-Yu Wang

Liouville equation is a fundamental one in statistical mechanics. It is rooted in ensemble theory. By ensemble theory, the variation of the system's microscopic state is indicated…

quant-ph2022★ 4 cited

The mathematical physical equations satisfied by retarded and advanced Green's functions

Huai-Yu Wang

In mathematical physics, time-dependent Green's functions (GFs) are the solutions of differential equations of the first and second time derivatives. Habitually, the time-dependent…

physics.gen-ph2022★ 7 cited

There is no vacuum zero-point energy in our universe for massive particles within the scope of relativistic quantum mechanics

Huai-Yu Wang

It was long believed that there is a zero-point energy in the form of hω/2 for massive particles, which is obtained from Schrödinger equation for the harmonic oscillator model. In…

physics.gen-ph2022★ 15 cited

The modified fundamental equations of quantum mechanics

Huai-Yu Wang

The Schrodinger equation, Klein-Gordon equation (KGE), and Dirac equation are believed to be the fundamental equations of quantum mechanics. Schrodinger's equation has a defect in…

physics.gen-ph2021★ 7 cited

Fundamental formalism of statistical mechanics and thermodynamics of negative kinetic energy systems

Huai-Yu Wang

The solutions of a particle's Dirac equation contains a negative kinetic energy (NKE) branch. Such an energy spectrum has an upper limit but no lower limit, so that the system with…

physics.gen-ph2021★ 12 cited

New results by low momentum approximation from relativistic quantum mechanics equations and suggestion of experiments

Huai-Yu Wang

A fundamental belief is that the formulism of relativistic quantum mechanics equations (RQMEs) should remain in low momentum motion. However, it is found that some formulas from RQ…

physics.gen-ph2020★ 10 cited

Macromechanics and two-body problems

Huai-Yu Wang

A wave function can be written in the form of ψ = ReiS/h. We put this form of wave function into quantum mechanics equations and take hydrodynamic limit, i. e., let Planck constant…

cond-mat.str-el2019★ 20 cited

The internal energies of Heisenberg magnetic systems

Huai-Yu Wang, Liang-Jun Zhai, Meichun Qian

The internal energies, including transverse and longitudinal parts, of quantum Heisenberg systems for arbitrary spin S are investigated by the double-time Green's function method.…

cond-mat.str-el2019★ 21 cited

The Phase Transition of Square Lattice Antiferromagnets at Finite Temperature

Huai-Yu Wang

The magnetic properties of the two-dimensional model with both exchanges and being antiferromagnetic and a single-ion anisotropy at nonzero temperatur…

cond-mat.stat-mech2017★ 20 cited

Hybridized Kibble-Zurek scaling in the driven critical dynamics across an overlapping critical region

Liang-Jun Zhai, Huai-Yu Wang, Shuai Yin

The conventional Kibble-Zurek scaling describes the scaling behavior in the driven dynamics across a single critical region. In this paper, we study the driven dynamics across an o…

cond-mat.stat-mech2004★ 27 cited

Many-body Green's function theory of ferromagnetic Heisenberg systems with single-ion anisotropies in more than one direction

Huai-Yu Wang, Zhen-Hong Dai, P. Fröbrich +2

The behaviour of ferromagnetic systems with single-ion anisotropies in more than one direction is investigated with many-body Green's function theory generalizing earlier work with…