Results 51 to 60 of about 168,598 (229)

Fermionic quantum hair and topological phase transitions in regular black holes

European Physical Journal C: Particles and Fields
This study investigates fermionic perturbations with vanishing total angular momentum (j=0) – corresponding to two coupled spinor fields – in regular black holes within asymptotically safe gravity.
S. Majid Amirfakhrian
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Composite-fermion crystallites in quantum dots

, 2003
The correlations in the ground state of interacting electrons in a two-dimensional quantum dot in a high magnetic field are known to undergo a qualitative change from liquid-like to crystal-like as the total angular momentum becomes large.
Bedanov V M, Chia-Chen Chang, Dev G, Girvin S M, Gun Sang Jeon, Jain J K, Jain J K, Jainendra K Jain, Maksym P A, Ruan W Y, Ruan W Y, Schweigert V A, Seki T, Su B, Su B, Xie X C   +15 more
core   +1 more source

Additive Manufacturing of Ni‐Based Thermoelectric Materials for Waste Heat Recovery

Advanced Materials Technologies, EarlyView.
Thermoelectric generators convert waste heat into electricity but are constrained by conventional fabrication. Here, laser powder bed fusion enables direct printing of customised n‐type Cu60Ni40 and p‐type Ni90Cr10 legs. The assembled module achieves 0.8% efficiency at ΔT = 419 K, demonstrating scalable additive manufacturing of eco‐friendly, design ...
Karolin Amstein, Aayush Dobhal, Heiko Reith, Ran He, Julia Kristin Hufenbach, Kornelius Nielsch, Pingjun Ying   +6 more
wiley   +1 more source

Greybody factor for an electrically charged regular-de Sitter black holes in d-dimensions

European Physical Journal C: Particles and Fields
We investigate the propagation of scalar fields in the gravitational background of higher-dimensional, electrically charged, regular de Sitter black holes.
Md Sabir Ali, A. Naveena Kumara, Kartheek Hegde, C. L. Ahmed Rizwan, Shreyas Punacha, K. M. Ajith   +5 more
doaj   +1 more source

Pairing effect on critical spin in chiral rotation

Physics Letters B
The critical spin Ic (or critical frequency ħωc) represents the minimum spin (or rotational frequency) required for stable chiral solutions in nuclear systems.
Y. Wu, Q.B. Chen
doaj   +1 more source

Is $1^-+$ Meson a Hybrid?

, 2012
We calculate the vacuum to meson matrix elements of the dimension-4 operator $\bar{\psi}\gamma_4\nblr_i \psi$ and dimension-5 operator $\bar{\psi}\eps\gamma_j\psi B_k$ of the $1^{-+}$ meson on the lattice and compare them to the corresponding matrix ...
Chen, Ying, Li, Gang, Liu, Keh-Fei, Yang, Yi-Bo   +3 more
core   +1 more source

Materials for Suppressed Triplet‐Polaron Quenching in Efficient and Long‐Lifetime Phosphorescent OLEDs

Advanced Optical Materials, EarlyView.
We performed a computational screening of phosphorescent emitters and charge transporters for OLEDs to identify combinations that minimize triplet‐polaron quenching, a major cause of efficiency loss and short operational lifetimes, especially in blue OLEDs. Our results reveal key design rules and highlight emitter‐transporter pairs that strongly reduce
Clint van Hoesel, Reinder Coehoorn, Peter A. Bobbert   +2 more
wiley   +1 more source

Vertically coupled double quantum dots in magnetic fields

, 1999
Ground-state and excited-state properties of vertically coupled double quantum dots are studied by exact diagonalization. Magic-number total angular momenta that minimize the total energy are found to reflect a crossover between electron configurations ...
A. H. MacDonald, B. Meurer, C. G. Darwin, D. G. Austing, D. Weinmann, D. Yoshioka, G. S. Boebinger, H. Imamura, H. Imamura, H. Imamura, H. Imamura, Hideo Aoki, Hiroshi Imamura, J. A. A. J. Pernboom, J. Eisenstein, J. J. Palacios, K. Cho, K. Moon, L. Brey, M. Eto, M. Stone, M. Wagner, N. F. Johnson, O. Keller, P. A. Maksym, P. A. Maksym, P. A. Maksym, Peter A. Maksym, R. B. Laughlin, R. C. Ashoori, R. C. Ashoori, R. J. Galejs, S. M. Girvin, S. Tarucha, T. Nakajima, T. Nakajima, U. Merkt, V. Fock, W. Kohn, Y. Tanaka, Y. W. Suen   +40 more
core   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source