标题： 固有动量在庞加莱规范理论中 显示英文标题

标题： Intrinsic momentum in Poincare gauge theory

摘要： 尽管在庞加莱规范理论框架下，通常认为洛伦兹连接对自旋场进行最小耦合，但关于平移规范场与费米子的耦合尚无普遍共识。 我们将表明，假设自旋场具有完整的庞加莱表示会导致不一致，通过将庞加莱群视为德西特群的收缩以及共形群的子群，可以追溯这些不一致的根源。 结果表明，平移场并不对费米子进行最小耦合，因此费米子不具有固有动量。 显示英文摘要

摘要： While it is generally accepted, in the framework of Poincare gauge theory, that the Lorentz connection couples minimally to spinor fields, there is no general agreement on the coupling of the translational gauge field to fermions. We will show that the assumption that spinors carry a full Poincare representation leads to inconsistencies, whose origins will be traced back by considering the Poincare group both as the contraction of the de Sitter group, and as a subgroup of the conformal group. As a result, the translational fields do not minimally couple to fermions, and consequently, fermions do not possess an intrinsic momentum.