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  • The authors study an interesting phenomena of shape coexistence in 186Pb. In an elegant and well-documented experiment, they confirm the coexistence of the three 0+ states in the 186Pb nucleus and reassign the shapes associated with the excited 0+ states.

    • Joonas Ojala
    • Janne Pakarinen
    • Robert Wadsworth
    Article Open Access
  • Fourier domain mode-locked lasers provide coherent, wavelength swept light useful for imaging applications, but the phase relation between frequencies is not understood. Here, experimental and numerical data is presented that suggests a fixed phase relation and comb-like structure of the sweep.

    • Christin Grill
    • Torben Blömker
    • Robert Huber
    Article Open Access
  • Synchronization dynamics in the presence of higher order interactions is well represented through variations of the Kuramoto model and subject of current interest. Here, the authors study and characterize the behavior of the simplicial Kuramoto model with weights on any simplices and in the presence of linear and nonlinear frustration, defined as the simplicial Sakaguchi-Kuramoto model.

    • Alexis Arnaudon
    • Robert L. Peach
    • Paul Expert
    Article Open Access
  • Sensing schemes based on exceptional point degeneracies in the resonant spectrum of non-Hermitian systems have been recently criticized for being susceptible to various sources of noise and structural imperfections. Here, the authors study non-resonant exceptional point degeneracies in the spectrum of transfer matrices of periodic structures, based on which passive sensors with enhanced noise resilience are then proposed.

    • William Tuxbury
    • Rodion Kononchuk
    • Tsampikos Kottos
    Article Open Access
  • A deeper understanding of the coupling at the interface of multiferroics heterostructures is being achieved by the use of synchrotron radiation techniques. Here, the authors use k-resolved soft X-ray photoemission spectroscopy and first principles calculations to investigate the band structure of several multiferroic heterostructures, isolating the distinct signature of the interface.

    • Marius Adrian Husanu
    • Dana Georgeta Popescu
    • Vladimir N. Strocov
    Article Open Access
  • Lasers in general are operated using a cavity resonant with emitters. In this study, the authors demonstrated a laser operating under an anti-resonant condition, where the emitter resonance is equally detuned from two Fabry–Perot fringes. This configuration may pave the way for reducing the laser linewidth and cavity pulling effect.

    • Tiantian Shi
    • Duo Pan
    • Jingbiao Chen
    Article Open Access
  • Nonlinear dynamical systems are ubiquitous in nature and play an essential role in science, from providing models for the weather forecast to describing the chaotic behavior of plasma in nuclear reactors. This paper introduces an artificial intelligence framework that can learn the correct equations of motion for nonlinear systems from incomplete data, and opens up the door to applying interpretable machine learning techniques on a wide range of applications in the field of nonlinear dynamics.

    • Peter Y. Lu
    • Joan Ariño Bernad
    • Marin Soljačić
    Article Open Access
  • In quantum isolated system, operator growth can be quantified by Krylov complexity. Here, the authors establish a rigorous bound on the Krylov complexity growth rate based on the uncertainty principle and show that the presence of quantum chaos is not strictly necessary to saturation of the bound.

    • Niklas Hörnedal
    • Nicoletta Carabba
    • Adolfo del Campo
    Article Open Access
  • Chimera states provide an intriguing physical platform to explore synchronization effects in neural networks and brain activity. Here, a recurrent neural network with embedded Chimera states is demonstrated, suggesting the generality and robustness of such states.

    • Maria Masoliver
    • Jörn Davidsen
    • Wilten Nicola
    Article Open Access

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