Results 131 to 140 of about 2,884,004 (376)

Energy Momentum Pseudo-Tensor of Relic Gravitational Wave in Expanding Universe

, 2012
We study the energy-momentum pseudo-tensor of gravitational wave, and examine the one introduced by Landau-Lifshitz for a general gravitational field and the effective one recently used in literature. In short wavelength limit after Brill-Hartle average,
A. Papapetrou, A. Polnarev, A. Trautman, A. A. Starobinsky, C. Moller, C. W. Misner, Daiqin Su, L. Grishchuk, L. D. Landau, L. Grishchuk, M. M. Basko, S. Weinberg, Yang Zhang   +12 more
core   +1 more source

Plant Robotics for Sustainable and Environmentally Friendly Robots: Insights from Actuation Characteristics

Advanced Science, EarlyView.
Plants are promising materials for building sustainable and eco‐friendly robots due to their inherent multifunctionality, with actuation playing a crucial role. This article focuses on the physical movements of plants and, from the perspective of actuation characteristics, explores representative plant species and their behaviors, the current state of ...
Kazuya Murakami, Misao Sato, Yu Ikeda, Tatsuhiro Horii, Yukari Nagatoshi, Miki Fujita, Toshinori Fujie, Yasunari Fujita, Jun Shintake   +8 more
wiley   +1 more source

Multi‐Soliton Microcombs Enable Ultrafast Nanometric‐Precision Ranging and Photon‐Level Detection

Advanced Science, EarlyView.
Our work first demonstrates dual‐multi‐soliton ranging and confirms its multifunctional capability. The method achieves ultrafast and nanometric‐precision measurement. For practical applications, we further extend the multi‐soliton states to photon‐level ranging.
Jiawen Zhi, Xiaoyang Guo, Xusheng Yang, Brent E. Little, Sai T. Chu, Chenggang Shao, Mengyu Wang, Yan Liang, Peng Xie, Weiqiang Wang, Hanzhong Wu   +10 more
wiley   +1 more source

Study of the thrust response characteristics of Hall Micro Thruster

Results in Physics
An advanced Watt class Hall Micro Thruster (HMT) is offered for Space Gravitational Wave Detection (SGWD), and an investigation has been conducted on its start-up, shutdown, rise, and fall response times.
Liexiao Dong, Shixu Lu, Ning Guo, Shengtao Liang, Jianfei Long, Wei Luo, Luxiang Xu   +6 more
doaj   +1 more source

Swift Pointing and Gravitational-Wave Bursts from Gamma-Ray Burst Events

, 2003
The currently accepted model for gamma-ray burst phenomena involves the violent formation of a rapidly rotating solar-mass black hole. Gravitational waves should be associated with the black-hole formation, and their detection would permit this model to ...
Finn, Lee Samuel, Krishnan, Badri, Sutton, Patrick J.   +2 more
core   +1 more source

Physics of Binary Star Evolution -- from Stars to X-ray Binaries and Gravitational Wave Sources [PDF]

, 2023
Thomas M. Tauris, E. P. J. van den Heuvel   +1 more
openalex   +1 more source

Transparent Transfer‐Free Ultrasmall Multilayer Graphene Microelectrodes Enable High Quality Recordings in Brain Slices

Advanced Science, EarlyView.
A transfer‐free fabrication method enables multilayer graphene microelectrodes as small as 10 µm, eliminating reliability issues of manual graphene transfer. These electrodes record neural activity in brain slices with exceptional signal‐to‐noise ratios (up to 25–40 dB) while maintaining optical transparency for multimodal applications.
Nerea de Alvarez de Eulate, Christos Pavlou, Gonzalo León González, María Camarena Pérez, Lukas Holzapfel, Zhenyu Gao, Sten Vollebregt, Vasiliki Giagka   +7 more
wiley   +1 more source

First search for gravitational waves from the youngest known neutron star [PDF]

, 2010
We present a search for periodic gravitational waves from the neutron star in the supernova remnant Cassiopeia A. The search coherently analyzes data in a 12 day interval taken from the fifth science run of the Laser Interferometer Gravitational-Wave ...
Abadie, J., Abbott, B. P., Abbott, R., Adhikari, Rana X., Ajith, P., Anderson, S. B., Araya, M., Aronsson, M., Aso, Y., Ballmer, S., Betzwieser, J., Billingsley, G., Black, E., Bork, R., Boyle, M., Brooks, A. F., Cannon, K. C., Cepeda, C., Chalermsongsak, T., Chen, Yanbei, Coyne, D. C., Dannenberg, R., Daudert, B., Dergachev, V., DeSalvo, R., Drever, R. W. P., Driggers, J. C., Ehrens, P., Engel, R., Etzel, T., Gustafson, E. K., Hanna, C., Heefner, J., Heptonstall, A., Hodge, K. A., Ivanov, A., Kalmus, P., Kells, W., Keppel, D. G., King, P. J., Kondrashov, V., Kozak, D., Lazzarini, A., Lindquist, P. E., Luan, J., Mageswaran, M., Mailand, K., Mak, C., Maros, E., Marx, J. N., McIntyre, G., Meshkov, S., Mino, Y., Mitra, S., Nash, T., Ogin, G. H., Osthelder, C., Patel, P., Pedraza, M., Robertson, N. A., Sannibale, V., Searle, A. C., Seifert, F., Sengupta, A. S., Singer, A., Smith, M. R., Somiya, K., Stochino, A., Taylor, R., Thorne, K. S., Torrie, C. I., Vallisneri, M., Vass, S., Villar, A., Wallace, L., Ward, R. L., Weinstein, Alan J., Whitcomb, S. E., Willems, P. A., Yamamoto, H., Yeaton-Massey, D., Zhang, L., Zweizig, J.   +82 more
core  

Phase transition and gravitational wave phenomenology of scalar conformal extensions of the Standard Model

, 2017
Thermal corrections in classically conformal models typically induce a strong first-order electroweak phase transition, thereby resulting in a stochastic gravitational wave background that could be detectable at gravitational wave observatories.
Marzola, Luca, Racioppi, Antonio, Vaskonen, Ville   +2 more
core   +1 more source

Experimental Joint Estimation of Phase and Phase Diffusion Via Deterministic Bell Measurements

Advanced Science, EarlyView.
This work employs Bell measurement, a form of entangling measurement, to estimate both the phase and its fluctuations in an optical interferometer. By incorporating a novel quantum effect at the measurement stage, the proposed method achieves the ultimate precision limit and demonstrates the significant potential of entangling measurements in multi ...
Ben Wang, Minghao Mi, Huangqiuchen Wang, Qian Xie, Lijian Zhang   +4 more
wiley   +1 more source