Results 11 to 20 of about 284,887 (285)
Stability of BTZ black strings [PDF]
Physical Review D, 2008 We study the dynamical stability of the BTZ black string against fermonic and gravitational perturbations. The BTZ black string is not always stable against these perturbations.
Bin Wang +4 more
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Detailed Stability Analysis of Electroweak Strings [PDF]
Nuclear Physics B, 1992 We give a detailed stability analysis of the Z-string in the standard electroweak model. We identify the mode that determines the stability of the string and numerically map the region of parameter space where the string is stable. For $\sin^2 \theta_W =
Achúcarro +13 more
core +4 more sources
Stability of Two Doublet Electroweak Strings [PDF]
Physical Review D, 1993 Vortex solutions in the two Higgs doublet electroweak model are constructed, and their stability to small perturbations is studied. The most general perturbation is decomposed into angular momentum modes, the least stable mode is identified, and the ...
Earnshaw, Michael A., James, Margaret
core +3 more sources
Cosmic string current stability [PDF]
Physical Review D, 2000 RevTex, 28 pages, 3 ...
Davis, Stephen C. +2 more
openaire +2 more sources
Quantum stabilization of cosmic strings [PDF]
Modern Physics Letters A, 2015 In the standard model, stabilization of a classically unstable cosmic string may occur through the quantum fluctuations of a heavy fermion doublet. We review numerical results from a semiclassical expansion in a reduced version of the standard model. In this expansion, the leading quantum corrections emerge at one loop level for many internal degrees ...
Weigel, H., Quandt, M., Graham, N.
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Stability of modified electroweak strings [PDF]
Zeitschrift für Physik C: Particles and Fields, 1996 Minor changes and inclusion of one figure. To be published on Z. f. Physik C.
Masperi, Luis, Megevand, Ariel
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COSMIC STRINGS STABILIZED BY FERMION FLUCTUATIONS [PDF]
International Journal of Modern Physics: Conference Series, 2012 We provide a thorough exposition of recent results on the quantum stabilization of cosmic strings. Stabilization occurs through the coupling to a heavy fermion doublet in a reduced version of the standard model. The study combines the vacuum polarization energy of fermion zero-point fluctuations and the binding energy of occupied energy levels, which ...
Weigel, Herbert +2 more
openaire +5 more sources
Stabilizing homogeneous black strings in AdS [PDF]
Journal of High Energy Physics, 2020 Abstract It is known that homogenous black strings in flat spacetime are unstable under long wavelength perturbations. Recently, by including scalar fields that depend on the extended coordinates only, homogenous black strings have been constructed in the presence of a negative cosmological constant, therefore implying that generic perturbations will ...
Cisterna, Adolfo +2 more
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Mathematical Biosciences and Engineering, 2023 The introduction of connected autonomous vehicles (CAVs) gives rise to mixed traffic flow on the roadway, and the coexistence of human-driven vehicles (HVs) and CAVs may last for several decades.
Lijing Ma +3 more
doaj +1 more source
Quantum current dissipation in superconducting strings and vortons
Journal of High Energy Physics, 2023 In this work, the current stability is discussed for cosmic strings with the bosonic superconductivity. A non-vanishing curvature of string generally induce the quantum instability of the current-carrying particle.
Yoshihiko Abe +3 more
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