Results 71 to 80 of about 9,317 (278)

Testing collapse models with levitated nanoparticles: the detection challenge [PDF]

, 2019
We consider a nanoparticle levitated in a Paul trap in ultrahigh cryogenic vacuum, and look for the conditions which allow for a stringent noninterferometric test of spontaneous collapse models.
Barker, P. F., Pontin, A., Rashid, M., Toros, M., Ulbricht, H., Vinante, A.   +5 more
core   +2 more sources

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Coordination of mode switching control and SMES unit for low‐voltage ride‐through fulfillment of power electronic transformer

Energy Science & Engineering, 2022
Power electronic transformer (PET) should have a satisfying low‐voltage ride‐through (LVRT) ability to cope with different kinds and severities of voltage sags.
Lei Chen, Xuefeng Qiao, Zekai Zhao, Xuechun Wang, Hongkun Chen, Yanhong Li, Md. Rabiul Islam, Xinyi Deng, Guocheng Li   +8 more
doaj   +1 more source

Long-range nonlocal flow of vortices in narrow superconducting channels [PDF]

, 2004
We report a new nonlocal effect in vortex matter, where an electric current confined to a small region of a long and sufficiently narrow superconducting wire causes vortex flow at distances hundreds of inter-vortex separations away.
A. K. Geim, A. I. Larkin, A. M. Campbell, D. Y. Vodolazov, E. H. Brandt, E. H. Brandt, E. H. Brandt, F. M. Peeters, H. R. Kerchner, I. V. Grigorieva, J. Osquiguil, J. W. Ekin, K. S. Novoselov, L. J. van der Pauw, M. Hesselberth, N. Toyota, P. H. Kes, S. V. Dubonos   +17 more
core   +3 more sources

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Quantum Vision Transformers [PDF]

Quantum
In this work, quantum transformers are designed and analysed in detail by extending the state-of-the-art classical transformer neural network architectures known to be very performant in natural language processing and image analysis.
El Amine Cherrat, Iordanis Kerenidis, Natansh Mathur, Jonas Landman, Martin Strahm, Yun Yvonna Li   +5 more
doaj   +1 more source

A loss-less superconducting kilo-oersted ac magnetic field system [PDF]

, 1977
A simple superconducting system which allows almost loss-less ac magnetic field to be generated in the kilo-oested region and in the frequency range from dc up to more than 1 kHz is described. The behaviour of commercially available superconducting wires
Bos, M.R.E., Klundert, L.J.M. van de, Marel, L.C. van der   +2 more
core   +2 more sources

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Application of thyristor controlled phase shifting transformer excitation impedance switching control to suppress short-circuit fault current level

Journal of Modern Power Systems and Clean Energy, 2018
Short-circuit fault current suppression is a very important issue in modern large-interconnected power networks. Conventional short-circuit current limiters, such as superconducting fault current limiters, have to increase additional equipment ...
Jun LIU, Xudong HAO, Xu WANG, Yefu CHEN, Wanliang FANG, Shuanbao NIU   +5 more
doaj   +1 more source

New Experimental Method for Investigating AC-losses in Concentric HTS Power Cables

, 2015
The optimization of a HTS cable design with respect to AC-losses is of crucial importance for the economic viability of the respective concept. However the experimental determination of AC-losses is not straightforward since for short cable samples the ...
Demencik, Eduard, Douine, Bruno, Elschner, Steffen, Goldacker, Wilfried, Grilli, Francesco, Kudymow, Andrej, Stemmle, Mark, Strauss, Severin, Zermeno, Victor   +8 more
core   +2 more sources