Results 71 to 80 of about 108,206 (304)

Comment on ‘Quantum principle of relativity’

open access: yesNew Journal of Physics, 2022
Recently Dragan and Ekert (2020 New. J. Phys . 22 033038) presented arguments that probabilistic dynamics inherent in the realm of quantum physics is related to the propagation of superluminal particles.
Andrzej Grudka, Antoni Wójcik
doaj   +1 more source

Shapeshifting Liquid Metal Droplets for Soft Fluidic Machines

open access: yesAdvanced Materials, EarlyView.
This study presented a liquid metal shape shifting strategy which harnesses Lorentz force, surface tension and fluid instabilities to achieve autonomous fluidic power. By using a liquid metal droplet as a mobile current carrier, this strategy enables the development of low‐voltage, self‐oscillating pumps that outperform existing soft pumps.
Saba Firouznia   +5 more
wiley   +1 more source

Derivation of the Lorentz Transformations for Three-Dimensional Relative Motion Between Inertial Frames of Reference

open access: yesAdvances in Mathematical Physics
Lorentz transformations are central to relativistic mechanics, explaining phenomena such as the mass–energy relationship, spatial contraction, momentum transformation, velocity addition, and the geometric structure of Minkowski space-time.
Chandra Bahadur Khadka
doaj   +1 more source

Interface‐Induced Stability of Nontrivial Topological Spin Textures: Unveiling Room‐Temperature Hopfions and Skyrmions

open access: yesAdvanced Materials, EarlyView.
The first room‐temperature, zero‐field observation of stable skyrmion–hopfion spin textures in EuS─Bi2Se3─EuS trilayers is reported. Combining Lorentz TEM imaging and micromagnetic modeling, the authors unveil how interfacial Dzyaloshinskii–Moriya interaction and geometric confinement stabilize these multidimensional topological states.
Ferhat Katmis   +11 more
wiley   +1 more source

Gauge and Lorentz Transformation Placed on the Same Foundation

open access: yesAdvances in Mathematical Physics, 2011
We show that a “dynamical” interaction for arbitrary spin can be constructed in a straightforward way if gauge and Lorentz transformations are placed on the same foundation.
Rein Saar   +3 more
doaj   +1 more source

Electromagnetic Mach principle [PDF]

open access: yes, 2011
We will introduce a gauge model which an electromagnetic coupling constant and local mass are related to all the charge in the universe. we will use the standard Dirac action, but where the mass and the electromagnetic coupling constant are a function of
Guendelman, E . I., Steiner, R.
core  

Observation of Topological Chirality Switching Induced Freezing of a Skyrmion Crystal

open access: yesAdvanced Materials, EarlyView.
Using Lorentz Transmission electron microscopy, it is shown that in the insulating van der Waals ferromagnet, CrBr3, a magnetic field can cause Bloch skyrmionic bubbles to spontaneously switch their chirality. As achiral type‐II bubbles are an intermediate state, the bubbles rapidly elongate and shrink when switching, thereby inducing a freezing of the
John Fullerton   +10 more
wiley   +1 more source

Relativity and irreversibility

open access: yesDiscrete Dynamics in Nature and Society, 2004
The Lorentz transformation is extended to the decaying states in a relativistic model of interacting fields. The nonlocal action is defined beyond the Hilbert space.
I. Antoniou   +3 more
doaj   +1 more source

Transition of Néel‐Type and Bloch‐Néel Hybrid Skyrmion in a Metallic Multilayer Material System

open access: yesAdvanced Materials, EarlyView.
This work demonstrated a framework for manipulating multiple skyrmion types in [Pt/Co/Cu]5 multilayers through bias‐driven thermal effects. Distinct Néel and hybrid skyrmion phases can be selectively stabilized, enabling binary encoding beyond chirality‐based schemes.
Binbin Wang   +11 more
wiley   +1 more source

Regularization of f(T) Gravity Theories and Local Lorentz Transformation

open access: yesAdvances in High Energy Physics, 2015
We regularized the field equations of f(T) gravity theories such that the effect of local Lorentz transformation (LLT), in the case of spherical symmetry, is removed.
Gamal G. L. Nashed
doaj   +1 more source

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