Probing the Quantum Vacuum. - Perturbative Effective Action Approach in Quantum Electrodynamics and its Application PDF
Holger GiesDate de parution
The quantum vacuum represents the ground state of Nature as it is described by quantum field theory, being the basic theory concept for all known matter and its ... Mar 11, 2020 ... He is a well known specialist in mathematical physics, field theory ... As it is related to the quantum vacuum, it is expected to be important ... Joseph Buchbinder gave a review of one-loop effective action in supersymmetric gauge theories. ... A fluid approach to the dark-energy epoch and the addition of four ...
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13/02/2020 · In Quantum Electrodynamics, photon-photon scattering is known to be a second-order effect in terms of the fine-structure constant α fs.For constant or weakly varying fields it can be formulated in standard notation by using the Lagrangian (Euler-Heisenberg Lagrangian density []) or the Hamiltonian approach [] in classical field theory.The effects of the quantum electrodynamics vacuum Atom - Photon Interactions: Basic Process and …
This book is devoted to an investigation of the vacuum of quantum elec trodynamics (QED), relying on the perturbative effective action approach. If the vacuum is probed with external perturbations, the response of the system can be analyzed after averaging over the high energy degrees of freedom. This results in an effective description of the properties of the vacuum, which are comparable to Nonperturbative QED vacuum birefringence - …
Many-body quantum electrodynamics networks: Note that in relation with quantum vacuum fluctuations, the dynamical Casimir effect was observed in superconducting circuits . 2.1. Superconducting elements . These superconducting circuits embody simple building blocks for quantum simulation, based on harmonic oscillators and artificial atoms – here, two-level mesoscopic systems – …
Aug 31, 2019 ... 1.2.5 The ϕ4 model and perturbation theory . ... 1.5.1 The effective action as a Legendre transform . ... 11.1 The fermion-induced vacuum polarization . ... techniques of quantum field theory do apply to this case : in particular the ... 14For this approach to work in practice, it turns out to be useful to truncate ...
Probing the Quantum Vacuum: Perturbative … This review is devoted to an investigation of the physical properties of the vacuum of quantum electrodynamics, making use of the perturbative-effective action approach. The effect of probing the vacuum with external perturbations is considered, and its response is analyzed after averaging over the high-energy degrees of freedom. The book is written for scientists active in the field as well