منابع مشابه
Vacuum polarization in thermal QED with an external magnetic field
The one-loop vacuum polarization tensor is computed in QED with an external constant, homogeneous magnetic field at finite temperature. The Schwinger proper-time formalisme is used and the computations are done in Euclidian space. The well-known results are recovered when the temperature and/or the magnetic field are switched off and the effect of the magnetic field on the Debye screening is di...
متن کاملVacuum polarization and plasma oscillations
We evidence the existence of plasma oscillations of electrons-positron pairs created by the vacuum polarization in an uniform electric field with E . Ec. Our general treatment, encompassing also the traditional, well studied case of E > Ec, shows the existence in both cases of a maximum Lorentz factor acquired by electrons and positrons and allows determination of the a maximal length of oscill...
متن کاملBraneworld dynamics with vacuum polarization
We investigate the cosmological dynamics of a brane Universe when quantum corrections from vacuum polarization are taken into account. New vacuum de Sitter points existing on Randall-Sundrum brane are described. We show also that quantum correction can destroy the DGP de Sitter solution on induced gravity brane. † Electronic mail: [email protected] ‡ Electronic mail: [email protected] Investig...
متن کاملParton Production Via Vacuum Polarization
For high matter and/or energy densities a deconfined state of matter, the so-called quark-gluon plasma (QGP) has been predicted to exist [1]. Its production is expected for ultrarelativistic heavy-ion collisions (URHIC) at RHIC and LHC. No direct signatures for its presence are experimentally accessible. In order to be able to decide which indirect ones could be available, detailed knowledge ab...
متن کاملGravitational vacuum polarization IV: Energy conditions in the Unruh vacuum
Building on a series of earlier papers [gr-qc/9604007,9604008,9604009], I investigate the various point-wise and averaged energy conditions in the Unruh vacuum. I consider the quantum stress-energy tensor corresponding to a conformally coupled massless scalar field, work in the test-field limit, restrict attention to the Schwarzschild geometry, and invoke a mixture of analytical and numerical t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1950
ISSN: 0033-068X
DOI: 10.1143/ptp.4.382