发表机构
University of California, Davis(加州大学戴维斯分校)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本研究证明连续统费米子在海森堡动力学下缺乏逐点范数连续性,进而揭示CAR代数及其规范不变子代数在几乎所有时刻都不具有动力学不变性。
AI 中文摘要
我们研究了在$\u211d^d$中通过两体势相互作用的连续统费米子的海森堡动力学。对于一大类非常数两体势,并在对色散关系和外势的适当假设下,我们证明了该动力学即使在规范不变的CAR代数上也不是逐点范数连续的。随后,一个自动连续性论证表明,CAR代数及其规范不变子代数在动力学下均不具有不变性,且这种非不变性在几乎所有时刻都会发生。
英文摘要
We study the Heisenberg dynamics of continuum fermions in $\IR^d$ interacting through a pair potential. For a large class of nonconstant pair potentials and under suitable assumptions on the dispersion relation and external potential, we prove that the dynamics fails to be pointwise-norm continuous even on the gauge-invariant CAR algebra. An automatic-continuity argument then shows that neither the CAR algebra nor its gauge-invariant subalgebra is invariant under the dynamics, with non-invariance occurring for almost all times.
Comments21 pages