11,831 research outputs found
Massive vector particles tunneling from black holes influenced by the generalized uncertainty principle
This study considers the generalized uncertainty principle, which
incorporates the central idea of large extra dimensions, to investigate the
processes involved when massive spin-1 particles tunnel from Reissner-Nordstrom
and Kerr black holes under the effects of quantum gravity. For the black hole,
the quantum gravity correction decelerates the increase in temperature. Up to
, the corrected temperatures are affected by the
mass and angular momentum of the emitted vector bosons. In addition, the
temperature of the Kerr black hole becomes uneven due to rotation. When the
mass of the black hole approaches the order of the higher dimensional Planck
mass , it stops radiating and yields a black hole remnant.Comment: 17 pages. Version accepted for publication on Physics Letters
Statistical Thermodynamics of General Minimal Diffusion Processes: Constuction, Invariant Density, Reversibility and Entropy Production
The solution to nonlinear Fokker-Planck equation is constructed in terms of
the minimal Markov semigroup generated by the equation. The semigroup is
obtained by a purely functional analytical method via Hille-Yosida theorem. The
existence of the positive invariant measure with density is established and a
weak form of Foguel alternative proven. We show the equivalence among
self-adjoint of the elliptic operator, time-reversibility, and zero entropy
production rate of the stationary diffusion process. A thermodynamic theory for
diffusion processes emerges.Comment: 23 page
Hamiltonian lattice quantum chromodynamics at finite density with Wilson fermions
Quantum chromodynamics (QCD) at sufficiently high density is expected to
undergo a chiral phase transition. Understanding such a transition is of
particular importance for neutron star or quark star physics. In Lagrangian
SU(3) lattice gauge theory, the standard approach breaks down at large chemical
potential , due to the complex action problem. The Hamiltonian formulation
of lattice QCD doesn't encounter such a problem. In a previous work, we
developed a Hamiltonian approach at finite chemical potential and
obtained reasonable results in the strong coupling regime. In this paper, we
extend the previous work to Wilson fermions. We study the chiral behavior and
calculate the vacuum energy, chiral condensate and quark number density, as
well as the masses of light hadrons. There is a first order chiral phase
transition at zero temperature.Comment: 23 pages. Version accepted for publication in Physical Review
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