Probing the Quantum Vacuum - Walter Dittrich, Holger Gies

Probing the Quantum Vacuum

Perturbative Effective Action Approach in Quantum Electrodynamics and its Application
Buch | Softcover
XI, 244 Seiten
2010 | 1. Softcover reprint of hardcover 1st ed. 2000
Springer Berlin (Verlag)
978-3-642-08686-1 (ISBN)
160,49 inkl. MwSt
Also available online in LINK
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 the properties of a classical medium. We concentrate primarily on the physics of slowly varying fields or soft photons by integrating out the high energy degrees of freedom, i.e. the elec trons, employing Schwinger's proper time method. We derive a new represen tation of the one loop photon polarization tensor, coupling to all orders to an arbitrary constant electromagnetic field, fully maintaining the dependence on the complete set of invariants. On the basis of effective Lagrangians, we derive the light cone condition for low frequency photons propagating in strong fields. Our formalism can be extended to various external perturbations, such as temperature and Casimir situations. We give a proof of the "unified formula" for low energy phenom ena that describes the refractive indices of various perturbed quantum vacua. In the high energy domain, we observe similarities between a vacuum with a superstrong magnetic field and a magnetized plasma. The question of mea surability of the various effects is addressed; a violation of causality is not found.

Nonlinear Electrodynamics: Quantum Theory.- Nonlinear Electrodynamics: Effective-Action Approach.- QED in Two Spatial Dimensions.- Scattering of Light by Light.

Erscheint lt. Verlag 8.12.2010
Reihe/Serie Springer Tracts in Modern Physics
Zusatzinfo XI, 244 p.
Verlagsort Berlin
Sprache englisch
Maße 155 x 235 mm
Gewicht 392 g
Themenwelt Naturwissenschaften Physik / Astronomie Astronomie / Astrophysik
Naturwissenschaften Physik / Astronomie Hochenergiephysik / Teilchenphysik
Naturwissenschaften Physik / Astronomie Quantenphysik
Naturwissenschaften Physik / Astronomie Theoretische Physik
Schlagworte electrodynamics • Non-linear Electrodynamics • quantum electrodynamics • Quantum Theory • quantum vacuum • scattering • Vacuum Polarization
ISBN-10 3-642-08686-1 / 3642086861
ISBN-13 978-3-642-08686-1 / 9783642086861
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