The topological twisting of 4D N=2 supersymmetric field theories requires specific topological data, including the spacetime's diffeomorphism type, characteristic classes of background gerbe connections ('t Hooft fluxes), and a concept introduced as "generalized spin-c structure."
The authors construct a positive geometry that encodes the all-loop planar four-point correlation function in N=4 super Yang-Mills theory. The geometry is defined as a fibration, where a loop-geometry is attached to each point in a base tree-geometry, and the loop-form is distinct for different chambers that the tree-geometry is dissected into.
This work explores the construction and properties of conformal defects in free scalar conformal field theories across various dimensions. The authors derive exact results for correlation functions, central charges, and renormalization group flows associated with these defects.
The Carroll-Field-Jackiw (CFJ) term, a lower-order Lorentz-violating quantum correction, is calculated in a massless Rarita-Schwinger model coupled to a gauge field. The CFJ term is found to be finite but gauge-dependent in the linear gauge, while it becomes gauge-independent in a nonlinear gauge.
本文提出了一種新的構建 N = 1 超共形場論中超場扭曲-2算子的方法,以及在 N = 1 超楊-米爾斯理論中零耦合極限下的相應生成泛函的計算。
중력장에 결합된 거대 벡터장 이론은 횡단 벡터장만이 전파되고 종단 모드는 비물리적이라는 조건 하에서 재규격화 가능하다.
The theory of a massive vector field (Proca model) coupled to a charged scalar field in curved spacetime is shown to be renormalizable by power counting. The longitudinal mode of the vector field decouples, and the remaining theory of the transverse vector field is renormalizable. The introduction of non-minimal curvature-dependent terms in the vector sector is not required for renormalizability.
The paper establishes the next-to-leading order renormalization matching between QCD field strength correlators measured on the lattice with gradient flow and the correlators relevant for heavy quark momentum diffusion in the quark-gluon plasma.
The disordered electron gas model in a strong magnetic field exhibits an emergent supersymmetry in the lowest Landau level limit, which simplifies the computation of observables and leads to dimensional reduction.
The one-loop corrections induced by a non-minimally coupled massive scalar field to the two gravitational potentials sourced by a static point mass in Minkowski space are calculated by solving the effective Einstein field equations.