arXiv subjects

Ding-Wei Huang

Publications and source records attributed to Ding-Wei Huang.

2 recordsLinked to original sources

arXiv1995

ORVB Mean-Field Calculation in the Tight-Binding Model with Anti-Ferromagnetic Exchange

We give a mean-field calculation for the odd-resonating-valence-bond ORVB pairing scheme. We obtain interesting quasi-particle excitation energy $E_{\bf k}$ as a function of momentum ${\bf k}$. It is distinctively different from those of the $d_{x^2-y^2}$-wave, the anisotropic-s-wave, and the p-wave. It is a gapless theory for superconductivity with well defined Fermi surface. The ground state of the ORVB scheme is not an eigenstate of the parity or the time-reversal transformation, thus both symmetries are violated. Some of them are already manifested in $E_{\bf k}\neq E_{-{\bf k}} $. It is interesting to find out if such pairing order-parameter scheme exits in some materials in nature.

cond-mat↗

arXiv1993

Salient Features of High-Energy Multiparticle Distributions Learned from Exact Solutions of 1-d Ising Model

We have derived explicit expressions in the 1-d Ising model for multiplicity distributions $P_{\delξ}(n)$ and factorial moments $F_q(\delξ)$. We identify the salient features of $P_{\delξ}(n)$ that lead to scaling, $F_q(\delξ)=\F_q[F_2]$, and universality. These results compare well with the presently available high-energy data of $\bar{p}p$ and $e^+e^-$ reactions. We point out the important features that should be studied in future higher-energy experiments of multiparticle productions in $pp$, $\bar{p}p$, $ep$, $e^+e^-$, and $NN$. We also make comments on comparisons with KNO and negative-binomial distributions.

hep-ph↗