Two point correlation function in integrable QFT with anticrossing symmetry, Phys - Delfino, Mussardo - 1994 () Citation Context ...[4]-[29] and references therein). Once the form factors of a certain operator
We provide a toolkit for computing the symmetry-resolved modular correlation function of the charge density operator in free fermionic theories. As an application, we compute this correlation function for a 1 + 1-dimensional free massless Dirac field theory and find that it is independent of the ...
The deformed Lagrangian S(λ) can be written as ∂S(λ) = d2zT T¯(z), ∂λ (1.1) where the operator T T¯(z) was first introduced in [1]. For conformal field theory (CFT) on torus, the partition function with the deformation can be computed and it remains modular ...
The large time behavior of such Laplace transform is dominated by branching points of the DoS function. Since at energies E<M−1 DoS exhibits non-analytic behavior as ρ(E)∼E1/2, it leads to Z(s)∼s−3/2 at |s|≫M. This is exactly the 3/2 law, observed in the long-...
The correlation function of these fields is given by < G R 1 µ 1 (z 1 ) . . . G R N µ N (z N ) >=< G R 1 (z 1 ) . . . G R N (z N ) > N i (z i −z j ) − µ i µ j k . 7 This is in agreement with the results of refs.[7, 8]....
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In these methods, features are first ex- tracted for each instance, and then an aggregation function is used to aggregate the features of each instance to ob- tain the bag feature, which is used to train a bag classifier. Attention-based aggregation method...
We consider the detection in the case of a simple QFT model with a suitable interaction to exact treatment, consisting of a quantum scalar field coupled linearly to a classical scalar source. We then evaluate the response function to the field quanta of two-level point-like quantum model ...
Field Theory (QFT), supplemented by operator-field evolution of the Langevin type, we discuss two issues concerning the Bose Einstein correlations (BEC): the origin of different possible coherent behaviour of the emitting source and the origin of the observed shape of the BEC function $C_2(Q...
To see the connection between them, we investigate the time-dependent two-point function of local operators in expanding universes. In the expanding universe the entanglement entropy increases with time, while the microscopic two-point function shows rapid suppression. This is because the increase of...