36 citations · 251 across the 16 of their papers we have counts for
16 papers
Renormalizing open quantum field theories
S. Nagy, J. Polonyi
The functional renormalization group flow of a scalar field theory with quartic couplings and a sharp spatial momentum cutoff is presented in four-dimensional Minkowski space-time…
Euclidean scalar field theory in the bi-local approximation
S. Nagy, J. Polonyi, I. Steib
The blocking step of the renormalization group method is usually carried out by restricting it to fluctuations and to local blocked action. The tree-level, bi-local saddle point co…
Quantum renormalization group
S. Nagy, J. Polonyi, I. Steib
The observed IR and the spectator UV particles of a regulated, cutoff quantum field theory are entangled by their interactions; hence, the IR sector can be described by the help of…
Proton scattering on an electron gas
F. Mansouri, J. Polonyi, K. Zazoua +1
It is shown in the case of proton scattering on an electron gas target that the Closed Time Path formalism can handle final state interactions of the target in equilibrium in a sim…
Decoherence and damping in ideal gases
Janos Polonyi
The particle and current densities are shown to display damping and undergo decoherence in ideal quantum gases. The damping is read off from the equations of motion reminiscent of…
Quantum censorship in two dimensions
V. Pangon, S. Nagy, J. Polonyi +1
It is pointed out that increasingly attractive interactions, represented by partially concave local potential in the Lagrangian, may lead to the degeneracy of the blocked, renormal…