Browse Articles

Filter By:

  • Driving quantum materials into non-equilibrium states using light-matter interactions is a way to induce novel quantum phases not attainable in equilibrium. Here, the authors theoretically demonstrate that circularly-polarised light can alter a d-wave superconductor in a strong-correlation regime into a topological superconducting state with broken time-reversal symmetry, as a combined effect of light and strong correlation.

    • Sota Kitamura
    • Hideo Aoki
    Article Open Access
  • The Kibble-Zurek (KZ) mechanism is traditionally an equilibrium scaling argument that yields an estimate for the density of topological defects in the ordered phase as a function of the quenching rate close to the critical point. Here, the authors show that this argument can be applied to nonequilibrium phase transitions and demonstrate numerically that for superconducting vortex lattices and colloidal ensembles the defect number follow a power law given by the directed percolation universality class.

    • C. J. O. Reichhardt
    • A. del Campo
    • C. Reichhardt
    Article Open Access
  • The availability of large amount of data has made network science a tool to be used across many disciplines. The authors derive a mathematical approximation that link two of the most used centrality measures in graph theory, degree and closeness, finding that the inverse of closeness is linearly dependent on the logarithm of degree; this relationship is also tested with real world networks finding good agreement.

    • Tim S. Evans
    • Bingsheng Chen
    Article Open Access
  • Random number generators (RNGs) are indispensable tools for information security. The authors derive a security proof for a quantum RNG based on parity-symmetric radioactive decay, which can be made as small as a few-square-millimeter chip and whose source has no need for power generation.

    • Toyohiro Tsurumaru
    • Toshihiko Sasaki
    • Izumi Tsutsui
    Article Open Access
  • Fractional quantum Hall states are the best known examples of emergent quantum matter with topological order. Here, the authors present a fusion mechanism for particle fractionalization and a conjecture on the universal long-distance behavior of edge excitations in fractional quantum Hall fluids.

    • Arkadiusz Bochniak
    • Zohar Nussinov
    • Gerardo Ortiz
    Article Open Access
  • With the amount of data available growing at exponential rates, methods based on networks have become a key tool for their investigation. The authors propose a framework to the study multilayer networks using a random walks with restart (RWR) method, which highlights the important influence of bipartite networks.

    • Anthony Baptista
    • Aitor Gonzalez
    • Anaïs Baudot
    Article Open Access
  • In scaling to global distances, future quantum networks are expected to make use of satellite-based orbiting quantum memories. In this manuscript, the authors simulate the performance of memory-assisted quantum key distribution (MA-QKD) schemes under a range of operating conditions and network configurations, with encouraging conclusions as to the feasibility of implementing such networks with near-term devices.

    • Julius Wallnöfer
    • Frederik Hahn
    • Janik Wolters
    Article Open Access
  • Phase separation phenomenon is a possible mechanism for important biological functions, from facilitating transcription by condensate formation, to the transport of cargo in the cell. This paper puts forward viscoelastic phase separation as a previously overlooked mechanism that could explain peculiar features of living cells such as network-like morphologies.

    • Hajime Tanaka
    Article Open Access
  • Direct observation of light-induced topological Floquet states can be challenging due to a number of obstacles such as laser-assisted photoemission which can complicate photoemission spectra. Here, the authors report a theoretical approach to the identification of topological Floquet states using circular dichroism in angle resolved photoemission spectroscopy.

    • Michael Schüler
    • Samuel Beaulieu
    Article Open Access
  • While the reconstruction of classic monolayer networks is a widely addressed problem, accurate reconstruction of multiplex networks is still an open challenge. Here the authors propose a statistical approach that allow to achieve optimal reconstruction of multiplex networks from partial observations and knowledge of the aggregated network.

    • Mincheng Wu
    • Jiming Chen
    • Jianxi Gao
    Article Open Access
  • Memristors are reconfigurable devices that are switchable between low and high resistive states and are expected to play an important role in the integrated circuit technology of next generation computing. Here, the authors theoretically demonstrate that ring-shaped nanostructures composed of a ferromagnetic material can exhibit memristive properties with performance values in the GHz range.

    • Francesco Caravelli
    • Ezio Iacocca
    • Clodoaldo I. L. de Araujo
    Article Open Access
  • Cosmic Rays (CRs) with energy below 1 PeV are believed to originate in the Milky Way, but recent gamma-ray observations by Fermi Large Area Telescope challenge the interpretation of CR diffusion mechanisms across the galaxy. The authors propose that a harder-than-expected slope of the diffuse gamma-ray emission spectrum in the inner Galaxy may be due to unresolved sources, suggested to be TeV-bright pulsar wind nebulae.

    • Vittoria Vecchiotti
    • Giulia Pagliaroli
    • Francesco Lorenzo Villante
    Article Open Access
  • Gain-switching techniques offer a route to ultrafast lasing at the microscale. Here, 13 ps single-mode lasing from inorganic perovskite CsPbBr3 microwires is demonstrated and low transient saturated gain is identified as a significant limitation for further pulse shortening.

    • Jiao Tian
    • Guoen Weng
    • Shaoqiang Chen
    Article Open Access
  • Discrete time crystals are a new state of matter emerging via spontaneous discrete translational symmetry breaking in time. The authors demonstrate that a dissipative discrete time crystal appears in an optical microcavity pumped by a phase-modulated continuous wave laser, offering a new route to study this exotic crystal phase.

    • Hossein Taheri
    • Andrey B. Matsko
    • Krzysztof Sacha
    Article Open Access
  • Biomedical applications of artificial microswimmers rely on efficient navigation strategies within complex and unpredictable fluid environments. Here, the authors use artificial intelligence to model and design microswimmers that are capable of self-learning efficient navigation strategies by adaptively switching between different locomotory gaits.

    • Zonghao Zou
    • Yuexin Liu
    • Alan C. H. Tsang
    Article Open Access
  • Despite the relevance of flexural elastic waves to many diverse physical systems, modelling their propagation is non-trivial. Here, branching and focusing of highly dispersive flexural waves in heterogeneous elastic plates is described numerically and analytically.

    • Kevin Jose
    • Neil Ferguson
    • Atul Bhaskar
    Article Open Access
  • Dzyaloshinskii-Moriya interaction is foundational for spintronics. The authors quantitatively established the roles of orbital hybridization and interfacial spin-orbit coupling in the determination of Dzyaloshinskii-Moriya interaction, offering orbital hybridization as a degree of freedom for the development of fast, dense spintronic memory and computing technologies.

    • Lijun Zhu
    • Lujun Zhu
    • Robert A. Buhrman
    Article Open Access