Results 31 to 40 of about 106,806 (266)
Numerical Optimization and Map-Based Manipulation With a Quadrupole Electromagnetic Actuated System
Frontiers in Neurorobotics, 2022 Electromagnetic actuation is a new technique for non-invasive manipulation, which provides wireless and controllable power source for magnetic micro-/nano-particles.
Weicheng Ma, Zhijie Huan, Min Xu
doaj +1 more source
Heisenberg necklace model in a magnetic field
Physical Review B, 2016 11 ...
Tsvelik, A. M., Zaliznyak, I. A.
openaire +3 more sources
Baxter-Wu model in a transverse magnetic field [PDF]
Physical Review E, 2014 13 pages, 17 ...
Capponi, Sylvain +3 more
openaire +3 more sources
On Measuring Divergence for Magnetic Field Modeling
The Astrophysical Journal, 2020 Abstract A physical magnetic field has a divergence of zero. Numerical error in constructing a model field and computing the divergence, however, introduces a finite divergence into these calculations. A popular metric for measuring divergence is the average fractional flux
S. A. Gilchrist +4 more
openaire +2 more sources
Network model of localization in a random magnetic field [PDF]
Physical Review B, 1995 We consider a network model of snake states to study the localization problem of non-interacting fermions in a random magnetic field with zero average. After averaging over the randomness, the network of snake states is mapped onto $M$ coupled SU$(2N)$ spin chains in the $N \rightarrow 0$ limit.
Kim, Yong Baek +2 more
openaire +3 more sources
A dynamo model of Jupiter’s magnetic field [PDF]
Icarus, 2014 Jupiter's dynamo is modelled using the anelastic convection-driven dynamo equations. The reference state model is taken from French et al. [2012]. Astrophys. J. Suppl. 202, 5, (11pp), which used density functional theory to compute the equation of state and the electrical conductivity in Jupiter's interior.
openaire +2 more sources
Vortex deconfinement in the XY model with a magnetic field [PDF]
Annals of Physics, 2003 We study vortex unbinding for the classical two-dimensional XY model in a magnetic field on square and triangular lattices. A renormalization group analysis combined with duality in the model shows that at high temperature and high field, the vortices unbind as the magnetic field is lowered in a two-step process: strings of overturned spins first ...
Fertig, H. A., Majumdar, Kingshuk
openaire +3 more sources
Progress in the modeling of Earth and planetary internal magnetic fields
地球与行星物理论评A majority of the planets in the Solar System are characterized by intrinsic magnetic fields that co-rotate with these celestial bodies. With ongoing advances in human deep-space exploration, magnetic field models have been established for all known ...
Jiawei Gao +9 more
doaj +1 more source
LOCAL MAGNETIZATION IN CRITICAL ISING MODEL WITH BOUNDARY MAGNETIC FIELD [PDF]
Modern Physics Letters A, 1994 We describe a simple way to derive spin correlation functions in 2-D Ising model at critical temperature but with nonzero magnetic field at the boundary. Local magnetization (i.e. one-point function) is computed explicitly for half-plane and disk geometries.
Chatterjee, R., Zamolodchikov, A.
openaire +2 more sources
Journal of Marine Science and EngineeringIn existing regional geomagnetic field modeling, the smoothness of basic functions and the insufficient data constraints in marginal regions lead to the omission of detail features and extrapolation oscillations.
Hongjie Chen +4 more
doaj +1 more source