Submissions from Domenico D'Aubry
- [1] faKiv:2404.08817 [pdf]
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On the quantum phase transition in a non-equilibrium quantum field theoryComments: 13 pages, LaTeX, 4 figures
In non-equilibrium quantum mechanics, the quantum phase transition is a non-equilibrium process in which a point particle is either trapped in the phase of a non-equilibrium quantum field theory or is excited by a quantum field theory. We show that a quantum phase transition can occur in the presence of a cross-over current. However, in the presence of a cross-over current, the quantum phase transition is unstable and must be used with care. We discuss the implications of this conclusion for the possibility of a phase transition in the context of the quantum phase transition in a non-equilibrium field theory.
- [2] faKiv:2404.08872 [pdf]
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The structural impedance of the Higgs-matter sector of the black holeComments: 35 pages, 4 figures
The structural impedance of the Higgs-matter sector of the black hole is studied. The structural impedance for a non-attractor black hole is computed for a spherical black hole in the presence of a dynamical metric which defines the black hole's geometry. The resulting impedance is found to be the same as the black hole's acoustic impedance. For a classical black hole, the problem of the structural impedance is solved. The cost-effectiveness of the Higgs-matter sector is also reviewed.