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A new study published in Communications Physics investigates the adaptability of topological phases in photonic systems by exploring incident angle-induced transitions in one-dimensional photonic crystals (PCs). The research reveals that both TE and TM polarized modes undergo topological phase transitions at the same critical angles, with a unique transition for TM modes at the Brewster angle. This work demonstrates the potential for achieving TE-TM splitting of topological interface states in the visible spectrum, which could have significant applications in optical communications, optical switching, and photonic integrated circuits. https://lnkd.in/gc4fd56P Citation: Figure 3 is from Li, P., Guo, Y., Xi, Y. et al. Controlling the TE-TM splitting of topological photonic interface states by precise incident angle adjustment. Commun Phys 7, 201 (2024). https://lnkd.in/gFzvtwAz

Structured electrons with chiral mass and charge. Physicists in Konstanz (Germany) have discovered a way to imprint a previously unseen geometrical form of chirality onto electrons. The electrons are shaped into chiral coils of mass and charge. Such engineered elementary particles may open new research avenues in fundamental physics and electron microscopy - https://lnkd.in/g4-kNJMd

Altermagnetism experimentally demonstrated . Ferromagnetism and antiferromagnetism have long been known to scientists as two classes of magnetic order of materials. Back in 2019, researchers postulated a third class of magnetism, called altermagnetism. This altermagnetism has been the subject of heated debate among experts ever since, with some expressing doubts about its existence. Recently, a team of experimental researchers was able to measure for the first time at DESY (Deutsches Elektronen-Synchrotron) an effect that is considered to be a signature of altermagnetism, thus providing evidence for the existence of this third type of magnetism. #ScienceDailynews #InnovativeResearch #NextGenScience #ExploringFrontiers

Recently, Nature published a paper that expanded the full functionality of dual-comb spectroscopy into the near-ultraviolet spectrum and low-light power conditions, opening new applications in precision spectroscopy, biomedical sensing, and environmental atmospheric detection. Using a photonic energy-level interferometer, Xu Bingxin and others overcame the challenges posed by low nonlinear frequency conversion efficiency. This research lays a solid foundation for extending dual-comb spectroscopy to shorter wavelengths. In the fields of atomic electron transitions, molecular vibrational transitions, fundamental physics, validation of quantum electrodynamics, determination of fundamental constants, precision measurement, optical clocks, atmospheric chemistry, astrophysical spectroscopy, and strong-field physics, ultraviolet spectroscopy holds crucial research significance. The main significance of this achievement focuses on ultraviolet precision spectroscopy and fundamental physics research. Additionally, because it operates at very low power levels, this achievement is also applicable to biomedical sensing and scenarios where samples are susceptible to radiation damage. (Source: Nature)

"Our 4th paper is now published! Grateful for the guidance and support of Prof. Swaniv Chandra in making this happen. Thrilled to see our research out in the world! Abstract -In the present paper we have studied the possibility of stationary structure formation in ion acoustic wave in a relaivistically degenerate quantum plasma in presence of magnetic field quantum diffraction parameter and localized exchange correlation energy. Recent authors include exchange correlation term in many plasma configurations including quantum and relativistic regime. We have analyzed the applicability of certain mathematical tools like the Sagdeev pseudo-potential method in dealing with the analysis of the formation and properties of large amplitude solitary structures, double layers, shocks etc. The findings of this paper will help future researchers to select analytical methods while studying wave phenomena in plasma . #Research #Plasmaphysics https://lnkd.in/gmJdB8rq

Altermagnetism experimentally demonstrated: Ferromagnetism and antiferromagnetism have long been known to scientists as two classes of magnetic order of materials. Back in 2019, researchers postulated a third class of magnetism, called altermagnetism. This altermagnetism has been the subject of heated debate among experts ever since, with some expressing doubts about its existence. Recently, a team of experimental researchers was able to measure for the first time at DESY (Deutsches Elektronen-Synchrotron) an effect that is considered to be a signature of altermagnetism, thus providing evidence for the existence of this third type of magnetism. #ScienceDaily #Technology

Researchers from the SNI network have used an atomic force microscope in pendulum mode to study a two-layer graphene device. In this bilayer graphene, the two layers of pure carbon were rotated by the “magic angle” of approximately 1.1° relative to one another. The results provide empirical proof that the method can be used to fine-tune not only current flow but also magnetization in the device. The results formed part of a doctoral thesis funded by the SNI and were recently published in the journal Communications Physics. #nanotechnology #materialsscience #graphene #engineering #technology #physics

Dear all, I’m happy to share the latest publication by postdoc Devashish Pandey and myself, in the journal Physical Review Research. We describe collective light emission and multiqubit dynamics of solid-state quantum emitters, focusing on the crucial role of phonons. We propose two efficient methods to model the dynamics, highlighting the importance of non-Markovian effects and temperature sensitivity. Key points: ·        Concatenation method: efficiently models phonon effects at the same computational cost as standard optical master equations. ·        Analytical expressions: for the collective emission spectrum of a one-dimensional chain. This work contributes to more accurate modeling of entangled solid-state emitters in quantum information applications. Check out the full article here: https://lnkd.in/dHdcYWyu #CollectiveEmission #OpenQuantumSystems #QuantumEmitters #Nanophotonics #Physics #QuantumInformation #QuantumComputing

First experimental evidence of hopfions in crystals opens up new dimension for future technology: Hopfions, magnetic spin structures predicted decades ago, have become a hot and challenging research topic in recent years. New findings open up new fields in experimental physics: identifying other crystals in which hopfions are stable, studying how hopfions interact with electric and spin currents, hopfion dynamics, and more. #ScienceDaily #Technology

First experimental evidence of hopfions in crystals opens up new dimension for future technology: Hopfions, magnetic spin structures predicted decades ago, have become a hot and challenging research topic in recent years. New findings open up new fields in experimental physics: identifying other crystals in which hopfions are stable, studying how hopfions interact with electric and spin currents, hopfion dynamics, and more. @Poseidon-US #ScienceDaily #Technology