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Category: 4. Physics
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Objects in Our Universe Evaporate Faster than Thought, Scientists Say
In a 2023 paper, Professor Heino Falcke and his colleagues at Radboud University showed that not only black holes, but also all other objects in the Universe can ‘evaporate’ via a process akin to Hawking radiation. After that publication,…
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CERN Physicists Observe Conversion of Lead into Gold
Near-miss collisions between high-energy lead nuclei at CERN’s Large Hadron Collider generate intense electromagnetic fields that can knock out protons and transform lead into fleeting quantities of gold nuclei.
Illustration of an…
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Advancing inorganic electro-optical materials for 5 G communications: from fundamental mechanisms to future perspectives
The development of EO materials has seen key milestones over the past century. Ferroelectricity was first experimentally discovered a century ago, leading to Valasek’s 1920 study on Rochelle salts showing their ferroelectric domains under…
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Neutrinos from explosive transients at the dawn of multi-messenger astronomy
Vitagliano, E., Tamborra, I. & Raffelt, G. G. Grand Unified Neutrino Spectrum at Earth: sources and spectral components. Rev. Mod. Phys. 92, 45006 (2020).
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Photon–photon chemical thermodynamics of frequency conversion processes in highly multimode systems
Theory
To formulate the aspects governing these optical “chemical reactions”, we begin by considering an exemplary frequency generation process in an arbitrary multimoded optical system. In the case under consideration, let us assume that the…
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Low-overhead defect-adaptive surface code with bandage-like super-stabilizers
Defective lattice surface code adapter
Creating a surface code adapter for defective lattices demands an automated solution capable of handling diverse defect scenarios that manifest randomly across the lattice, whether along its edges or…
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Coherence lengths and quantum entanglement in radiative capture reactions
A radiative capture reaction \(A(x, \gamma )B\) involves the absorption of a \(x=\) neutron, proton, and \(\alpha\) particle by a target nucleus \(A\), forming a compound nucleus \(B^*\) in an excited state6. The reaction proceeds as:
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Optical control of RKKY coupling and perpendicular magnetic anisotropy in a synthetic antiferromagnet
As discussed above, the nonchanged Hex at various pump-probe delays suggests that upon fs excitations the magnetization magnitude has a minor impact on the RKKY interaction. The RKKY interaction can be described by the following effective…
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The amorphous materials behind biophysics
The amorphous materials behind biophysics
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