Results 41 to 50 of about 39,531 (283)

Maxwell field with gauge fixing term in de Sitter space: Exact solution and stress tensor

Physical Review D, 2022
The Maxwell field with a general gauge fixing (GF) term is nontrivial, not only the longitudinal and temporal modes are mixed up in the field equations, but also unwanted consequences might arise from the GF term. We derive the complete set of solutions in de Sitter space, and implement the covariant canonical quantization which restricts the residual ...
Zhang, Yang, Ye, Xuan
openaire   +2 more sources

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

Influence of high‐order electromagnetic force on vibration characteristics of induction motor

IET Electric Power Applications, 2023
The exploration of electromagnetic vibration sources is very important for the vibroacoustic reduction of a squirrel‐cage induction motor. However, the influence of high‐order electromagnetic force on the electromagnetic vibration of induction motor has ...
Xiaopeng Liu, Jianfeng Hong, Bingxiang Sun, Weige Zhang, Jiuchun Jiang   +4 more
doaj   +1 more source

Maxwell stress in fluid mixtures

, 2012
We examine the structure of Maxwell stress in binary fluid mixtures under an external electric field and discuss its consequence. In particular, we show that, in immiscible blends, it is intimately related to the statistics of domain structure.
A. Onuki, J. R. Melcher, L. D. Landau, M. Liu, Takahiro Sakaue, Takao Ohta   +5 more
core   +1 more source

Optical vortex trap for resonant confinement of metal nanoparticles [PDF]

, 2008
The confinement and controlled movement of metal nanoparticles and nanorods is an emergent area within optical micromanipulation. In this letter we experimentally realise a novel trapping geometry near the plasmon resonance using an annular light field ...
Adams, Allen, Ashkin, Barton, Bradshaw, Brevik, Clifford, Csaki, Gordon, Hansen, Johnson, Kishan Dholakia, Kühn, Mansuripur, Maria Dienerowitz, McGloin, Michael Mazilu, Mie, Nieto-Vesperinas, O’Neil, Pelton, Peter J. Reece, Prikulis, Rohrbach, Seol, Svedberg, Svoboda, Thomas F. Krauss, Toussaint   +28 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Holographic Euclidean thermal correlator

Journal of High Energy Physics
In this paper, we compute holographic Euclidean thermal correlators of the stress tensor and U(1) current from the AdS planar black hole. To this end, we set up perturbative boundary value problems for Einstein’s gravity and Maxwell theory in the spirit ...
Song He, Yi Li
doaj   +1 more source

Scalar charges and the first law of black hole thermodynamics

Physics Letters B, 2018
We present a variational formulation of Einstein–Maxwell-dilaton theory in flat spacetime, when the asymptotic value of the scalar field is not fixed. We obtain the boundary terms that make the variational principle well posed and then compute the finite
Dumitru Astefanesei, Romina Ballesteros, David Choque, Raúl Rojas   +3 more
doaj   +1 more source

Holographic Charged Fluid with Anomalous Current at Finite Cutoff Surface in Einstein-Maxwell Gravity

, 2012
The holographic charged fluid with anomalous current in Einstein-Maxwell gravity has been generalized from the infinite boundary to the finite cutoff surface by using the gravity/fluid correspondence.
Bum-Hoon Lee, C Eling, C Niu, CP Herzog, D Anninos, D Brattan, DT Son, E Witten, ET Akhmedov, G Compere, G Compere, G Tallarita, G Tallarita, H Tan, I Amado, I Bredberg, I Bredberg, I Heemskerk, J Boer de, J Erdmenger, J Hur, JM Maldacena, K Jensen, K Landsteiner, K Landsteiner, M Cvetič, M Rangamani, M Torabian, N Banerjee, N Banerjee, N Iqbal, O Aharony, R Emparan, R-G Cai, R-G Cai, R-G Cai, RA Bertlmann, RB Mann, RC Myers, S Bhattacharyya, S Deser, S Deser, S Gubser, S Haro de, S Kuperstein, S Nakamura, S-J Sin, T Faulkner, T Kalaydzhyan, T-Z Huang, V Balasubramanian, V Balasubramanian, WA Bardeen, Xiaojian Bai, Y Brihaye, Y Matsuo, Y Matsuo, Y-P Hu, Y-P Hu, Y-P Hu, Ya-Peng Hu, Yun-Long Zhang   +61 more
core   +1 more source