Sagdeev, R. Z. Cooperative phenomena and shock waves in collisionless plasmas. In Reviews of Plasma Phys., Vol. 4 (ed. Leontovich, M. A.) 23–91 (Consultants Bureau, 1966).
Washimi, H. & Taniuti, T. Propagation of ion-acoustic solitary waves of…
Category: 4. Physics
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Optimization of tangential interior brushless DC motor rotor for hybrid vehicles
Hybrid vehicle oil pump motors commonly employ permanent magnet brushless DC motors. Due to the presence of rotor permanent magnets, it inevitably generates cogging torque, which seriously affects the low-speed performance of the motor19….
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Photogalvanic effects in non-centrosymmetric halide perovskites
Stranks, S. D. et al. Electron–hole diffusion lengths exceeding 1 micrometer in an organometal trihalide perovskite absorber. Science 342, 341–344 (2013).
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Huang,…
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Quantum reservoir probing of quantum phase transitions
Framework of the QRP
Before going to the QRP, we provide an overview of a brain-inspired machine-learning framework called reservoir computing36,37,38. In this paradigm, information is nonlinearly processed by networks of artificial neurons,…
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Quantum sensors tested for next-generation particle physics experiments
To learn more about the nature of matter, energy, space, and time, physicists smash high-energy particles together in large accelerator machines, creating sprays of millions of particles per second of a variety of masses and speeds. The…
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Active Polymers Tie Themselves in Knots
• Physics 18, s55
Simulations show that polymers that include inert and self-propelled components are more likely to form and retain knots, with possible applications in materials engineering.
Long molecules can become…
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Diamonds Are a Fish’s Best Friend
• Physics 18, s52
Fish swimming in vertical diamond formations gain efficiency through hydrodynamic interactions.
Fish travel in schools to defend against predators, improve navigation, and increase opportunities for…
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Effects of boundaries for high Reynolds number artificial swimmers
Fig. 1 The fish robots: Photos of the toy fish (a) side view, (b) top view. (c) Beating amplitude versus time: three frequencies are apparent with the smallest one showing beating in one direction or the other (half duty cycle). (d) Velocity…
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Ultra-weak infrared light detection based on steep-slope phototransistors
To examine our argument, we begin by analyzing the working mechanism for a semiconductor phototransistor/diode. This kind of device is the most commonly used photodetector, It mainly contains a semiconductor (e.g., p-n or p-i-n) junction7 (It…
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Exchange anisotropies in microwave-driven singlet-triplet qubits
The schematics of the device used in the experiment is shown in Fig. 1a. Electrostatic gates deplete the two-dimensional hole gas beneath, creating a double quantum dot (DQD) on the bottom part of the device to be operated as a qubit. A single…
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