Results 41 to 50 of about 287,878 (297)
Gauge string in the fermion asymmetric matter [PDF]
Two new effects of interaction of the gauge string with a homogeneous density of fermions are considered in a gauge model with an anomalous coupling of vector fields with fermions.
A.A. Kozhevnikov +14 more
core +3 more sources
Strings, Junctions and Stability
15 pages, LaTeX; references added.
Mukherjee, Avijit +2 more
openaire +3 more sources
Bound states can stabilize electroweak strings [PDF]
We show that the electroweak $Z-$string can be stabilized by the presence of bound states of a complex scalar field. We argue that fermions coupled to the scalar field of the string can also make the string stable and discuss the physical case where the string is coupled to quarks and leptons.
Vachaspati, Tanmay, Watkins, Richard
openaire +3 more sources
KÄHLER STABILIZED, MODULAR INVARIANT HETEROTIC STRING MODELS [PDF]
We review the theory and phenomenology of effective supergravity theories based on orbifold compactifications of the weakly-coupled heterotic string. In particular, we consider theories in which the four-dimensional theory displays target space modular invariance and where the dilatonic mode undergoes Kähler stabilization.
Gaillard, Mary K., Nelson, Brent D.
openaire +2 more sources
Robust Time-Delay Feedback Control of Vehicular CACC Systems with Uncertain Dynamics
This paper proposes a new, robust time-delay cooperative adaptive cruise control (CACC) approach for vehicle platooning systems with uncertain dynamics and varying communication delay.
Xiulan Song, Li Chen, Ke Wang, Defeng He
doaj +1 more source
Current-Carrying Zero Mode for the Nielsen-Olesen String [PDF]
Zero modes of strings in the abelian Higgs model are analyzed. In spite of the fact that the gauge symmetry is not broken in the string center, the corresponding zero mode is shown to exist and to see it one has to analyze carefully the dependence on ...
Alford +15 more
core +3 more sources
IMPROVED STABILITY FOR PULSATING MULTISPIN STRING SOLITONS [PDF]
We derive and analyze, analytically and numerically, the equations for perturbations around the pulsating two-spin string soliton in AdS 5×S5. We show that the pulsation in S5 indeed improves the stability properties of the two-spin string soliton in AdS 5, in the sense that the more pulsation we have, the higher spin we can allow and still have ...
Khan, Alex, Larsen, Arne Lykke
openaire +4 more sources
Black String in dRGT Massive Gravity [PDF]
We present a cylindrically symmetric solution, both charged and uncharged, which is known as a black string solution to the nonlinear ghost-free massive gravity found by de Rham, Gabadadze, and Tolley (dRGT). This "dRGT black string" can be thought of as
Ghosh, Sushant G. +2 more
core +2 more sources
Open-closed string correspondence: D-brane decay in curved space [PDF]
This paper analyzes the effect of curved closed string backgrounds on the stability of D-branes within boundary string field theory. We identify the non-local open string background that implements shifts in the closed string background and analyze the ...
A. Pressley +19 more
core +2 more sources
Stability of superconducting strings
Abstract We investigate the stability of superconducting strings as bound states of strings and fermion zero modes at both the classical and quantum levels. The dynamics of these superconducting strings can result in a stable configuration, known as a vorton. We mainly focus on global strings, but the majority of the discussion can
Keisuke Harigaya +3 more
openaire +3 more sources

