标题： 二维量子电动力学的光前哈密顿形式与洛伦兹协变方法等价 显示英文标题

标题： The Light-Front Hamiltonian formalism for two-dimensional Quantum Electrodynamics equivalent to the Lorentz-covariant approach

摘要： 利用玻色化方法以及对费米子质量的所有阶数的玻色微扰理论分析，在光前坐标下构建了一个哈密顿量，该哈密顿量重现了二维量子电动力学在洛伦兹坐标下的结果。 所得的哈密顿量除了通常出现在幼稚光前量子化的项之外，还涉及一个额外的反常项。 这个项与零模的线性组合成正比（这些零模被一个补偿电荷和费米子数的因子乘以）。 反常项的系数没有紫外发散，依赖于费米子凝聚体在\theta - 真空中的值，并且对于小的费米子质量情况下，此系数是线性的。 显示英文摘要

摘要： A light-front Hamiltonian reproducing the results of two-dimensional quantum electrodynamics in the Lorentz coordinates is constructed using the bosonization procedure and an analysis of the bosonic perturbation theory in all orders in the fermion mass. The resulting Hamiltonian involves a supplementary counterterm in addition to the usual terms appearing in the naive light-front quantization. This term is proportional to a linear combination of zeroth fermion modes (which are multiplied by a factor compensating the charge and fermion number). The coefficient of the counterterm has no ultraviolet divergence, depends on the value of the fermion condensate in the \theta-vacuum, and is linear in this value for a small fermion mass.