Ελληνικά
English
Nature Physics
Nature Physics offers news and reviews alongside top-quality research papers in a monthly publication, covering the entire spectrum of physics. Physics addresses the properties and interactions of matter and energy, and plays a key role in the development of a broad range of technologies. To reflect this, Nature Physics covers all areas of pure and applied physics research. The journal focuses on core physics disciplines, but is also open to a broad range of topics whose central theme falls within the bounds of physics.
Ενημερώθηκε: πριν από 5 ώρες 46 λεπτά
Emergence of large-scale mechanical spiral waves in bacterial living matter
Nature Physics, Published online: 04 April 2024; doi:10.1038/s41567-024-02457-5
The occurrence of propagating spiral waves in multicellular organisms is associated with key biological functions. Now this type of wave has also been observed in dense bacterial populations, probably resulting from non-reciprocal cell–cell interactions.
Κατηγορίες: Physics Department - Extern RSS Feeds
Leggett modes in a Dirac semimetal
Nature Physics, Published online: 04 April 2024; doi:10.1038/s41567-024-02412-4
Leggett modes can occur when superconductivity arises in more than one band in a material and represent oscillation of the relative phases of the two superconducting condensates. Now, this mode is observed in Cd3As2, a Dirac semimetal.
Κατηγορίες: Physics Department - Extern RSS Feeds
Topological Kerr effects in two-dimensional magnets with broken inversion symmetry
Nature Physics, Published online: 04 April 2024; doi:10.1038/s41567-024-02465-5
The ferromagnet CrVI6 serves as a material platform to demonstrate the topological Kerr effect in two-dimensional magnets. This can be used to identify skyrmions by magneto-optical means.
Κατηγορίες: Physics Department - Extern RSS Feeds
Multistep topological transitions among meron and skyrmion crystals in a centrosymmetric magnet
Nature Physics, Published online: 01 April 2024; doi:10.1038/s41567-024-02445-9
Topological magnetic spin structures such as skyrmions and merons have the potential to be used in magnetic information devices. Now multistep transformations between such structures are demonstrated in a centrosymmetric material.
Κατηγορίες: Physics Department - Extern RSS Feeds
Magnetically tunable supercurrent in dilute magnetic topological insulator-based Josephson junctions
Nature Physics, Published online: 01 April 2024; doi:10.1038/s41567-024-02477-1
Despite their potential device applications, experimental realizations of proximity-induced Fulde–Ferrell–Larkin–Ovchinnikov states are rare. Now Josephson junctions based on a dilute magnetic topological insulator provide evidence of such a state.
Κατηγορίες: Physics Department - Extern RSS Feeds
Multiphoton quantum statistics from scattered classical light
Nature Physics, Published online: 27 March 2024; doi:10.1038/s41567-024-02447-7
Even by shining classical light on a single opening, one can perform a double-slit experiment and discover a surprising variety of quantum mechanical multi-photon correlations — thanks to surface plasmon polaritons and photon-number-resolving detectors.
Κατηγορίες: Physics Department - Extern RSS Feeds
Connecting shear flow and vortex array instabilities in annular atomic superfluids
Nature Physics, Published online: 27 March 2024; doi:10.1038/s41567-024-02466-4
Two adjacent layers flowing at different velocities in the same fluid are subject to flow instabilities. This phenomenon is now studied in atomic superfluids, revealing that quantized vortices act as both sources and probes of the unstable flow.
Κατηγορίες: Physics Department - Extern RSS Feeds
Search for decoherence from quantum gravity with atmospheric neutrinos
Nature Physics, Published online: 26 March 2024; doi:10.1038/s41567-024-02436-w
Interactions of atmospheric neutrinos with quantum-gravity-induced fluctuations of the metric of spacetime would lead to decoherence. The IceCube Collaboration constrains such interactions with atmospheric neutrinos.
Κατηγορίες: Physics Department - Extern RSS Feeds
Complexity of crack front geometry enhances toughness of brittle solids
Nature Physics, Published online: 22 March 2024; doi:10.1038/s41567-024-02435-x
Experiments probing three-dimensional crack propagation show that the critical strain energy needed to drive a crack is directly proportional to its geodesic length. This insight is a step towards a fully three-dimensional theory of crack propagation.
Κατηγορίες: Physics Department - Extern RSS Feeds
Protons on the line
Nature Physics, Published online: 20 March 2024; doi:10.1038/s41567-023-02344-5
Stable regions in four-dimensional phase space have been observed by following the motion of accelerated proton beams subject to nonlinear forces. This provides insights into the physics of dynamical systems and may lead to improved accelerator designs.
Κατηγορίες: Physics Department - Extern RSS Feeds
Observation of fixed lines induced by a nonlinear resonance in the CERN Super Proton Synchrotron
Nature Physics, Published online: 20 March 2024; doi:10.1038/s41567-023-02338-3
Nonlinear resonances can cause particle loss in accelerators. Experiments confirm that a coupled nonlinear resonance traps beam particles on a four-dimensional closed curve. This finding allows the development of mitigation strategies.
Κατηγορίες: Physics Department - Extern RSS Feeds
Melting of the charge density wave by generation of pairs of topological defects in UTe<sub>2</sub>
Nature Physics, Published online: 20 March 2024; doi:10.1038/s41567-024-02429-9
A mechanism for the phase transition of charge density wave states via the generation and proliferation of topological defects with opposite phase windings is demonstrated in a heavy-fermion superconductor.
Κατηγορίες: Physics Department - Extern RSS Feeds
Flexoelectricity-driven toroidal polar topology in liquid-matter helielectrics
Nature Physics, Published online: 18 March 2024; doi:10.1038/s41567-024-02439-7
Exploring and exploiting electric dipole arrangements analogously to what is possible with magnetic spin textures is an emerging prospect. Now a spontaneous toroidal polar topology is observed in ferroelectric liquid crystals.
Κατηγορίες: Physics Department - Extern RSS Feeds
Fruity blues
Nature Physics, Published online: 14 March 2024; doi:10.1038/s41567-024-02450-y
Fruity blues
Κατηγορίες: Physics Department - Extern RSS Feeds
Batter quality
Nature Physics, Published online: 14 March 2024; doi:10.1038/s41567-024-02449-5
Batter quality
Κατηγορίες: Physics Department - Extern RSS Feeds
The air temperature conundrum
Nature Physics, Published online: 14 March 2024; doi:10.1038/s41567-024-02428-w
Measuring air temperature is far from a trivial task, as Andrea Merlone, Graziano Coppa and Chiara Musacchio explain.
Κατηγορίες: Physics Department - Extern RSS Feeds
Honesty is being put through the mill
Nature Physics, Published online: 14 March 2024; doi:10.1038/s41567-024-02430-2
Honesty is being put through the mill
Κατηγορίες: Physics Department - Extern RSS Feeds
Computing in physics education
Nature Physics, Published online: 14 March 2024; doi:10.1038/s41567-023-02371-2
Computing is central to the enterprise of physics but few undergraduate physics courses include it in their curricula. Here we discuss why and how to integrate computing into physics education.
Κατηγορίες: Physics Department - Extern RSS Feeds
Racial equity in physics education research
Nature Physics, Published online: 14 March 2024; doi:10.1038/s41567-024-02424-0
Injustices and oppression are pervasive in society, including education. An intersectional, equity-oriented approach can help remove systemic obstacles and improve the experience of marginalized people in physics education through decolonial and critical race lenses.
Κατηγορίες: Physics Department - Extern RSS Feeds
Unlock the potential of a physics education
Nature Physics, Published online: 14 March 2024; doi:10.1038/s41567-024-02458-4
This month in Nature Physics, we publish a Focus issue that highlights the importance of physics education research.
Κατηγορίες: Physics Department - Extern RSS Feeds