152 citations · 734 across the 74 of their papers we have counts for
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Arnab Kar, S. G. Rajeev
We show that the two-point function σ(x,x')=\sqrt{<[ϕ(x)-ϕ(x')]^{2}>} of a scalar quantum field theory is a metric (i.e., a symmetric positive function satisfying the triangle ineq…