Guo Shuohong

The Vacuum of Lattice Gauge Theory with Fermions and Spontaneous Chiral Symmetry Breaking

The vacuum structure of lattice gauge theory with fermions is studied by the variational method. The fermion condensate is given as a function of .

Calculation of Vacuum Wavefunction and Mass .Gap from Improved (2+l)-Dimensional SU(2) Lattice Gauge Field Hamiltonian*

The truncated eigenvalue equation of SU(N) lattice gauge theory is studied by using improved lattice gauge Hamiltonian with a proper truncation scheme that preserves the continuum limit. The calculations of vacuum state wavefunction and glueball mass of (2+1)-dimensional SU(2) theory up to third order are carried out, the results show the improvement of scaling behavior in deep weak coupling region.

Unitary Transformations in Lattice Gauge Theory with Fermions and the Meson Spectrum

The Hamiltonian of lattice gauge theory with fermions is diagonalized in the one-link approximation and the meson spectrum of SU(N) theory with one flavor is derived.

Short-Time Critical Behavior Affected by Weakly Long-Range Interactions

The theoretic renormalization group approach is applied to the study of short-time critical behavior of the Ginzburg–Landau model with weakly long-range interactions . The system initially at a high temperature is firstly quenched to the critical temperature and then released to an evolution with a model A dynamics. A double expansion in and with of order is employed, where is the spatial dimension. The asymptotic scaling laws and the initial slip exponents and for the order parameter and the response function respectively are calculated to the second order in for close to 2.

Glueball masses from Hamiltonian lattice QCD

We calculate the masses of the and glueballs from QCD in dimensions using an eigenvalue equation method for Hamiltonian lattice QCD developed and described by S.H. GUO et al. The mass ratios become approximately constants in the coupling region , from which we estimate and .We calculate the masses of the

The exact ground state of a Hamiltonian lattice gauge theory

0^{++}

Third-Order Approximation of 0++ Glueball Mass and Wavefunction of (2+1)-Dimensional SU(3) Lattice Gauge Theory*

,

Phase Transition in Two-Dimensional Josephson-Junction Arrays*

0^{--}

The Duality Transformation for an n-Species Ising Model Interacting with Z2 Gauge Fields on a Random Surface*

and

The Mass Gap of SU(2) Lattice Gauge Theory in 2+1 Dimensions*

1^{+-}