Add to ORKGWe show that a Green function solution can be given for a class of non-homogeneous nonlinear systems having relevance in quantum field theory. This in turn means that a quantum field theory in the strong coupling limit can be formulated and the spectrum obtained
We show how to use the Hopf algebra structure of quantum field theory to derive nonperturbative resu...
The Hamiltonian $H={1\over2} p^2+{1\over2}m^2x^2+gx^2(ix)^\delta$ with $\delta,g\geq0$ is non-Hermit...
In a recent work, we presented the first application of the Poisson-Wiseman-Anderson method of `matc...
We analyze numerically a two-dimensional $\lambda\phi^4$ theory showing that in the limit of a stron...
A method, independently proposed by Kaiser and by us, to study the strong coupling limit of the Gree...
A method based on spectral Green's functions is presented for the simulation of driven open quantum ...
AbstractThe (real-time) Green's functions for the P(φ)2 quantum field theory are studied. The main r...
Many-body theory is largely based on self-consistent equations that are constructed in terms of the ...
We discuss similarities and differences between Green Functions in Quantum Field Theory and polyloga...
In many systems containing open shell ions, the wave function of the ions cannot be described by a s...
The Non-Equilibrium Green Function (NEGF) method was established in the 1960's through the classic w...
Greens function a technique used to solve in general non homogeneous differential equations. It is b...
The subject of this thesis lies in the field of many-body theory. This field emerged from the aim to...
The paper studies the behavior of equations of motions of Green’s functions under different running ...
Using Green$'$s function and operator techniques we give a closed expression for the response of a n...
We show how to use the Hopf algebra structure of quantum field theory to derive nonperturbative resu...
The Hamiltonian $H={1\over2} p^2+{1\over2}m^2x^2+gx^2(ix)^\delta$ with $\delta,g\geq0$ is non-Hermit...
In a recent work, we presented the first application of the Poisson-Wiseman-Anderson method of `matc...
We analyze numerically a two-dimensional $\lambda\phi^4$ theory showing that in the limit of a stron...
A method, independently proposed by Kaiser and by us, to study the strong coupling limit of the Gree...
A method based on spectral Green's functions is presented for the simulation of driven open quantum ...
AbstractThe (real-time) Green's functions for the P(φ)2 quantum field theory are studied. The main r...
Many-body theory is largely based on self-consistent equations that are constructed in terms of the ...
We discuss similarities and differences between Green Functions in Quantum Field Theory and polyloga...
In many systems containing open shell ions, the wave function of the ions cannot be described by a s...
The Non-Equilibrium Green Function (NEGF) method was established in the 1960's through the classic w...
Greens function a technique used to solve in general non homogeneous differential equations. It is b...
The subject of this thesis lies in the field of many-body theory. This field emerged from the aim to...
The paper studies the behavior of equations of motions of Green’s functions under different running ...
Using Green$'$s function and operator techniques we give a closed expression for the response of a n...
We show how to use the Hopf algebra structure of quantum field theory to derive nonperturbative resu...
The Hamiltonian $H={1\over2} p^2+{1\over2}m^2x^2+gx^2(ix)^\delta$ with $\delta,g\geq0$ is non-Hermit...
In a recent work, we presented the first application of the Poisson-Wiseman-Anderson method of `matc...