Robert Mills

Robert Laurence Mills (April 15, 1927 – October 27, 1999) was an American physicist, specializing in quantum field theory, the theory of alloys, and many-body theory. While sharing an office at Brookhaven National Laboratory, in 1954, Chen Ning Yang and Mills proposed a tensor equation for what are now called Yang–Mills fields (this equation reduces to Maxwell's equations as a special case; see gauge theory): ∂ μ F μ ν + 2 ϵ ( b μ × F μ ν ) = J ν {\displaystyle \partial _{\mu }F^{\mu \nu }+2\epsilon (b_{\mu }\times F^{\mu \nu })=J^{\nu }} .