Results 91 to 100 of about 235,883 (239)

Brane stability under $$f(Q,{\mathcal {T}})$$ f ( Q , T ) gravity

European Physical Journal C: Particles and Fields
The focus of this paper is to investigate the behavior of a codimension-one thick brane in the modified symmetric teleparallel gravity structure $$f(Q, {\mathcal {T}})$$ f ( Q , T ) , where Q is the nonmetricity scalar and $${\mathcal {T}}$$ T is the ...
A. R. P. Moreira, Shi-Hai Dong
doaj   +1 more source

Trace and diffeomorphism anomalies of the classical Liouville theory, Virasoro algebras, Weyl-gauging and all that

Nuclear Physics B
To fully clarify the invariance of the classical Liouville field theory under the Virasoro algebra, we first elucidate in detail the concept of classical anomaly, discuss the occurrence of two symmetry algebras associated to this theory, and provide some
Pavel Haman, Alfredo Iorio
doaj   +1 more source

Initial correlations of the Glasma energy-momentum tensor

Journal of High Energy Physics, 2019
We present an analytical calculation of the covariance of the energy-momentum tensor associated to the gluon field produced in ultra-relativistic heavy ion collisions at early times, the Glasma.
Javier L. Albacete, Pablo Guerrero-Rodríguez, Cyrille Marquet   +2 more
doaj   +1 more source

Magnetic and Crystal Symmetry Control on Spin Hall Conductivity in Altermagnets

Advanced Science, EarlyView.
Crystal structures and schematic illustrations of the spin Hall effect (SHE) in altermagnets. High‐symmetry RuO2 exhibits conventional SHE, while tilted RuO2 shows trivial unconventional SHE (USHE) caused by structural tilting. CrSb and MnTe, with reduced magnetic symmetry, display intrinsic USHE arising from symmetry‐driven spin–momentum locking ...
Dameul Jeong, Seoung‐Hun Kang, Young‐Kyun Kwon   +2 more
wiley   +1 more source

Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion

Advanced Science, EarlyView.
In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi, Nicholas Andrianto, Glen Vosgerichian, Farhood Aghdasi, Joshua Lloyd, Ali Zabihi, Chen Shen   +6 more
wiley   +1 more source

Vacuum stress between conducting plates for Neuman conditions [PDF]

Iranian Journal of Astronomy and Astrophysics
In [1], we have found that the curved spacetime version of the vacuum stress between conducting plates was first done in flat spacetime by Brown and Maclay.
Borzoo Nazari
doaj   +1 more source

Inside the Microreactor: In Situ Real‐Time Observation of Vapor–Liquid–Solid Growth of Monolayer TMDCs

Advanced Science, EarlyView.
In situ observation of VLS growth in a confined microreactor reveals various growth modes of monolayer TMDCs, including abnormal ribbon growth and particle‐driven growth. The confined space and precursor balance influence droplet behavior and growth dynamics, offering new insights into the controlled synthesis of TMDCs via the VLS mechanism.
Hiroo Suzuki, Yutaro Senda, Kaoru Hisama, Shuhei Aso, Yuta Takahashi, Shun Fujii, Yasuhiko Hayashi   +6 more
wiley   +1 more source

Membrane‐Mediated Force Transduction Drives Stick‐Slip Motion of Lipid Vesicles

Advanced Science, EarlyView.
A rotating magnetic field actuates a ferromagnetic particle inside a lipid vesicle, generating internal flows that induce stick‐slip propulsion near a surface. Membrane properties—elasticity, excess area, and phase behavior—modulate this motion by shaping stress dissipation and force transduction.
Paula Magrinya, Arin Escobar Ortiz, Juan L. Aragones, Laura R. Arriaga   +3 more
wiley   +1 more source

Observation of Edge‐Confined Acoustic Hyperbolic Polaritons in van der Waals Materials

Advanced Science, EarlyView.
This work demonstrates a new type of light wave—edge‐confined acoustic hyperbolic polaritons—in hexagonal boron nitride on gold. These waves travel along crystal edges with nanoscale confinement and strongly interact with molecular vibrations, enabling highly sensitive detection of tiny molecular layers.
Tianning Zhang, Xiaojie Jiang, Xiaosheng Yang, Xinliang Zhang, Peining Li   +4 more
wiley   +1 more source

Strained Graphene as Pristine Graphene with a Deformed Momentum Operator

Condensed Matter
We explore the equivalence between the low-energy dynamics of strained graphene and a quantum mechanical framework for the 2D Dirac equation in flat space with a deformed momentum operator.
David Valenzuela, Alfredo Raya, Juan D. García-Muñoz   +2 more
doaj   +1 more source