Pate Monica, Raclariu Ana-Maria, Strominger Andrew
Center for the Fundamental Laws of Nature, Harvard University, Cambridge, Massachusetts 02138, USA.
Phys Rev Lett. 2017 Dec 29;119(26):261602. doi: 10.1103/PhysRevLett.119.261602. Epub 2017 Dec 28.
A transient color flux across null infinity in classical Yang-Mills theory is considered. It is shown that a pair of test "quarks" initially in a color singlet generically acquire net color as a result of the flux. A nonlinear formula is derived for the relative color rotation of the quarks. For a weak color flux, the formula linearizes to the Fourier transform of the soft gluon theorem. This color memory effect is the Yang-Mills analog of the gravitational memory effect.
考虑经典杨-米尔斯理论中穿过类光无穷远的瞬态色通量。结果表明，一对初始处于色单态的测试“夸克”通常会由于该通量而获得净色荷。推导出了夸克相对色旋转的非线性公式。对于弱色通量，该公式线性化为软胶子定理的傅里叶变换。这种色记忆效应是引力记忆效应的杨-米尔斯类似物。
