1 citations · 1 across the 2 of their papers we have counts for
8 papers
Resummation of the perturbation series for an interaction of a scalar field with a quantized metric
Z. Haba
We consider a scalar field interacting with a quantized metric varying on a submanifold (e.g. a scalar field interacting with a quantized gravitational wave). We explicitly sum up…
Renormalization in quantum Brans-Dicke gravity
Z. Haba
In the Brans-Dicke model we treat the scalar field exactly and expand the gravitational field in a power series. A comparison with 2D sigma models and ϕ^{4} perturbation theory in…
Absence of a charge renormalization in the Higgs model interacting with conformal two-dimensional gravity
Z. Haba
We discuss D-dimensional scalar and electromagnetic fields interacting with a quantized metric. The gravitons depend solely on twodimensional coordinates. We consider a conformal f…
Effective action in a quantized metric
Z. Haba
We calculate the effective action in Yang-Mills and scalar ϕ^4 quantum field theory with quantized scale invariant metric treated non-perturbatively in d=4 dimensions. There is no…
Langevin Equation for Particle in Thermal Photon Bath
Z. Haba, H. Kleinert
The forward--backward path integral describing a charged particle moving in a thermal bath of photons is expressed in terms of the solution of a Langevin-type of equation. Approxim…
Quantum propagators in a random metric
Z. Brzezniak, Z. Haba
We consider second order differential operators with coefficients which are Gaussian random fields. When the covariance becomes singular at short distances then the propagators of…