Physics
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Quantum motion and hyperentanglement control
The two atoms trapped in the beam of laser light are shown in a special quantum state called hyperentanglement. In this state, both motion and internal energy are linked, opening up new possibilities for quantum technology. Credit: AI-generated images by Manuel Endres Manuel Endres, professor of physics at Caltech, specializes in finely controlling a single atom using a device known…
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Faster, more stable plasma simulations can help you progress with chip manufacturing
The markers indicate the node locations of the numerical grid in the coordinate plane x-y. A solid purple circle is the node of the central grid, indicated by a purple straight line. The intersecting of the triangle and diagonal represent the nodes of the grid shifted along the x and y directions, respectively. The red circled dots are the nodes…
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Scientists discover one of the world’s thinnest semiconductor junctions formed within quantum materials
Balanced band structure of Mn(bi1 -xsbx) 6te10 with x = 0.18. (a) Band structure along the γ-M direction of the MBT and 1-BT terminations. (b) Hole measurements of 18% SB doped MNBI6TE10 at 5 K, showing a carrier density of ~6.5 x 1018 cm-3 near the charge neutral point. (c) Illustrations of different cut terminations of MNBI6TE10 and sketches of…
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Researchers are developing the world’s first petahertz speed phototransistor in surrounding conditions
Mohammed Hassan (right), an associate professor of physics and optical sciences, and a graduate student studying optics and physics, holds the commercial transistors used in the development of the Petahertz-Speed Transistor. Credit: Mohammed Hassan What if ultra-fast light pulses can operate a computer at speed several hundred times faster than today’s best processors? A team of scientists, including researchers at…
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From landslides to drugs: High-precision models simulate complex granular and fluid interactions
(a) Illustration of a PUA-DEM partition fluid solid domain for modeling a three-stage system. Distribution of air-water interfaces and capillary forces juxtaposed with DEM particles. (b) Capillary regime. (c) Sexual domain. (d) Instability of the fluid fluorescent interface, capillary transport (left) and viscous fingering (right). (e) Force chain evolution in granular media embedded with expandable materials, low confinement (left) and…
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Australian researchers use quantum computers to simulate the behavior of real molecules
Graphical abstract. Credit: Journal of the American Chemical Society (2025). doi:10.1021/jacs.5c03336 When molecules absorb light, they receive a whirlwind of quantum mechanical transformation. Electrons jump between energy levels, oscillations of atoms, and chemical bonds, all within 10 seconds. These processes support everything from photosynthesis in plants to DNA damage caused by sunlight, to solar cell surgery and light-driven cancer therapy.…
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Theoretical model uses light and heat to provide a fresh route to more efficient cooling
A self-supporting thermodynamic system combines a thermal engine with a thermal radioactive diode to increase radiative cooling power by enabling autonomously generated positive photon chemical potentials and enhanced cooling capacity. Credit: Journal of Photonics for Energy (2025). doi:10.1117/1.jpe.15.022507 As climate change and energy expansion strain global systems, scientists are increasingly relying on passive cooling technologies. It can cool objects and…
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Electro-Optic Sampling Research unlocks new insights into quantum physics
(a) Evolution of the polarization states of incoming field geometry, electro-optic crystals (EOX), and gate pulses. (b) Typical setup of EOS using a femtosecond laser. The near-infrared (NIR) laser power in the form of a short pulse (blue) is split into “test” and “gate” beams by a beam splitter (BS). For example, the long wave test wave (red) produced by…
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New research provides insight into the cleanup of quantum entanglement noise
Researchers have found that a universal entanglement purification protocol is not guaranteed to improve the fidelity of entangled states in all possible quantum systems. Credit: Zhong Lab Quantum Entanglement – The connections between particles that generate correlations beyond what is classically possible will become the backbone of future quantum technologies, such as secure communication, cloud quantum computing, and distributed sensing.…
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Dual laser technology reduces brilliant sensing frequency to 200 MHz
This figure shows the Briann gain spectral map obtained along a 13 m single-mode silica fiber. The top diagram shows the tension section of ~1.1 m. The low-color plot shows the corresponding shifts in Brillouin frequencies and confirms distributed strain sensing. Credit: Yokohama National University Scientists have developed a dual-laser Brillouin optical correlation domain reflectometry (BOCDR) system that uses two…
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