Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Nora Weickgenannt"'
Publikováno v:
Physical Review Research, Vol 5, Iss 1, p 013187 (2023)
We derive an expression for the tensor polarization of a system of massive spin-1 particles in a hydrodynamic framework. Starting from quantum kinetic theory based on the Wigner-function formalism, we employ a modified method of moments which also ta
Externí odkaz:
https://doaj.org/article/b993f5dc966547f9b377567e8d63bfa9
Publikováno v:
Physical Review D. 106
We derive relativistic dissipative spin hydrodynamics from kinetic theory featuring a nonlocal collision term using the method of moments. In this framework, the components of the spin tensor are dynamical variables which obey relaxation-type equatio
We present the explicit expressions of different pseudo-gauge transformations for Dirac and Proca fields considering a general interaction term. The particular case of the interaction of Dirac and Proca fields with a background electromagnetic field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::edb761b4c6bbe3713adeea6fa3d6cd6c
http://arxiv.org/abs/2204.01797
http://arxiv.org/abs/2204.01797
We revisit the derivation of the nonlocal collision term in the Boltzmann equation for spin-1/2 particles, using both the Wigner-function approach by de Groot, van Leeuwen, and van Weert, and the Kadanoff-Baym equation in $T$-matrix approximation. Co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a193d1c2edb70d2afdb9bc0121b5fe0a
Publikováno v:
Physical Review D. 104
We derive the Boltzmann equation and the collision kernel for massive spin-$1/2$ particles, using the Wigner-function formalism and employing an expansion in powers of $\ensuremath{\hbar}$. The phase space is enlarged to include a variable related to
We derive Boltzmann equations for massive spin-1/2 fermions with local and nonlocal collision terms from the Kadanoff--Baym equation in the Schwinger--Keldysh formalism, properly accounting for the spin degrees of freedom. The Boltzmann equations are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb7f736f83973c573b606278db8e98f4
http://arxiv.org/abs/2103.10636
http://arxiv.org/abs/2103.10636
We calculate the Wigner function for massive spin-1/2 particles in an inhomogeneous electromagnetic field to leading order in the Planck constant $\hbar$. Going beyond leading order in $\hbar$ we then derive a generalized Boltzmann equation in which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd9537b07e0da579b262288269e90e45
Publikováno v:
Physical Review D. 100
We calculate the Wigner function for massive $\mathrm{spin}\text{\ensuremath{-}}1/2$ particles in an inhomogeneous electromagnetic field to leading order in the Planck constant $\ensuremath{\hbar}$. Going beyond leading order in $\ensuremath{\hbar}$