Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Weldon, H."'
Autor:
Weldon, H. Arthur
The statistical mechanics of an ideal gas of point particles moving in a time independent background metric with $g_{0j}\neq 0$ is investigated. An explicit calculation shows that when there is no background electrostatic or magnetostatic field the t
Externí odkaz:
http://arxiv.org/abs/2403.18652
Autor:
Weldon, H. Arthur
The Hilbert energy-momentum tensor for gauge-fixed non-Abelian gauge theories, defined by the variational derivative of the action with respect to the space-time metric, is a tensor under general coordinate transformations, symmetric in its indices,
Externí odkaz:
http://arxiv.org/abs/2305.06209
In weakly collisional and collisionless magnetized plasmas, the pressure-strain interaction describes the rate of conversion between bulk flow and thermal energy density. In this study, we derive an analytical expression for the pressure-strain inter
Externí odkaz:
http://arxiv.org/abs/2211.13161
Autor:
Weldon, H. Arthur
From statistical mechanics the trace of the thermal average of any energy-momentum tensor is $\langle T^{\mu}_{\;\;\mu}\rangle =T\partial P/\partial T-4P$. The renormalization group formula $\langle T^{\mu}_{\;\;\mu}\rangle =\beta(g_{M})\partial P/\p
Externí odkaz:
http://arxiv.org/abs/2209.09764
Autor:
Weldon, H. Arthur
Publikováno v:
Phys.Rev. D71 (2005) 036002
The 2^{n} different n-point functions that occur in real-time thermal field theory are Fourier transformed to real energies. Because of branch cuts in various energy variables, none of these functions can be extended analytically to complex energies.
Externí odkaz:
http://arxiv.org/abs/hep-ph/0411235
Autor:
Weldon, H. Arthur
Publikováno v:
Phys.Rev. D69 (2004) 045006
The retarded electron propagator S_{R}(p_{0},p) at high momentum p>>T was shown by Blaizot and Iancu to be an entire function of complex p_{0}. In this paper a specific form for S_{R}(p_{0},p) is obtained and checked by showing that its temporal Four
Externí odkaz:
http://arxiv.org/abs/hep-ph/0309322
Autor:
Weldon, H. Arthur
Publikováno v:
Phys.Rev. D67 (2003) 128701
A recent paper by Alves, Das, and Perez contains a calculation of the one-loop self-energy in \phi^{3} field theory at T\neq 0 using light-front quantization and concludes that the self-energy is different than the conventional answer and is not rota
Externí odkaz:
http://arxiv.org/abs/hep-ph/0304096
Autor:
Weldon, H. Arthur
Publikováno v:
Phys.Rev. D67 (2003) 085027
The dependence of thermal field theory on the surface of quantization and on the velocity of the heat bath is investigated by working in general coordinates that are arbitrary linear combinations of the Minkowski coordinates. In the general coordinat
Externí odkaz:
http://arxiv.org/abs/hep-ph/0302147
Autor:
Weldon, H. Arthur
Publikováno v:
Phys.Rev. D65 (2002) 076010
The analytic properties in the energy variable k_{0} of finite-temperature self-energies are investigated. A typical branch cut results from n particles being emitted into the heat bath and n' being absorbed from the heat bath. There are three main r
Externí odkaz:
http://arxiv.org/abs/hep-ph/0203057
Autor:
Weldon, H. Arthur
Publikováno v:
Phys.Rev. D63 (2001) 104010
A general formulation of spinor fields in Riemannian space-time is given without using vierbeins. The space-time dependence of the Dirac matrices required by the anticommutation relation {\gamma_{\mu},\gamma_{\nu}}=2g_{\mu\nu} determines the spin con
Externí odkaz:
http://arxiv.org/abs/gr-qc/0009086