Results 11 to 20 of about 2,477,505 (293)
On the stability of string theory vacua
Journal of High Energy Physics, 2022 Vacuum compactifications may suffer from instabilities under small perturbations or tunnel effects; both are difficult to analyze. In this paper we consider the issue from a higher-dimensional perspective.
Suvendu Giri +2 more
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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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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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Cosmic string current stability [PDF]
Physical Review D, 2000 RevTex, 28 pages, 3 ...
Davis, Stephen C. +2 more
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Stability of electroweak strings
Physical Review D, 1992 We map the parameter space that leads to stable [ital Z] vortices in the electroweak model. For sin[sup 2][theta][sub [ital W]]=0.23, we find that the strings are unstable for a Higgs-boson mass larger than 24 GeV. Given the latest constraints on the Higgs-boson mass from the CERN [ital e][sup +][ital e[minus]] collider LEP, this shows that, if the ...
James, M. +2 more
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String moduli stabilization at the conifold [PDF]
Journal of High Energy Physics, 2016 We study moduli stabilization for type IIB orientifolds compactified on Calabi-Yau threefolds in the region close to conifold singularities in the complex structure moduli space. The form of the periods implies new phenomena like exponential mass hierarchies even in the regime of negligible warping.
Blumenhagen, Ralph +2 more
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Intelligent Bus Platoon Lateral and Longitudinal Control Method Based on Finite-Time Sliding Mode
Sensors, 2022 Considering the rapid convergence of the longitudinal and lateral tracking errors of the platoon, a finite-time tracking control method for the longitudinal and lateral directions of the intelligent bus platoon is proposed. Based on the bus platoon model
Lingli Yu +4 more
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String Stability Analysis of Mixed CACC Vehicular Flow With Vehicle-to-Vehicle Communication
IEEE Access, 2020 This paper focuses on traffic scenarios randomly mixed with cooperative adaptive cruise control (CACC) vehicles and manual vehicles with vehicle-to-vehicle (V2V) communication.
Yanyan Qin, Shuqing Li
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IEEE Access, 2018 This paper presents a robust control method for heterogeneous vehicle platoon subject to varying road slopes, aerodynamic drag, and wireless communication delay. First, a heterogeneous vehicle platoon is built, including parameter uncertainty, equivalent
Liwei Xu +3 more
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Centralized and Distributed Control Framework Under Homogeneous and Heterogeneous Platoon
IEEE Access, 2021 Platooning vehicles are beneficial in comfortable driving, safety, and enhanced transportation efficiency. Platooning vehicles with cooperative adaptive cruise control (CACC) mode can potentially result in a small distance between vehicles with assured ...
Muhammad Rony Hidayatullah +1 more
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