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Showing 1–13 of 13 results
Advanced filters: Author: Zhaoju Yang Clear advanced filters

  • Light launched into a disordered photonic chip first drifts, then unexpectedly reverses and returns to its point of origin. This work presents the first real-space observation of this quantum boomerang effect and demonstrates how engineered loss and time-varying couplings can accelerate the return dynamics.

    • Xiangrui Hou
    • Zhaoxin Wu
    • Zhaoju Yang
    ResearchOpen Access
    Nature Communications
    P: 1-7

  • Time reflection and refraction are experimentally observed in ultracold atoms. To this end, the time boundary is formed by imposing an abrupt change in the coupling strength of the atomic chain. Time boundary effects are robust against material disorder.

    • Zhaoli Dong
    • Hang Li
    • Bo Yan
    Research
    Nature Photonics
    Volume: 18, P: 68-73

  • The non-Hermitian skin effect, which nonreciprocally accumulates particles at the boundary, generally suppresses entanglement by constraining global correlations. Here, the authors demonstrate that interactions can suppress nonreciprocal bunching, while entangled photons can reverse bunching direction, leading to enhanced entanglement.

    • Tuo Wan
    • Zhaoju Yang
    ResearchOpen Access
    Communications Physics
    Volume: 8, P: 1-7

  • The implementation of synthetic Abelian gauge fields in quantum simulators can result in chiral edge currents. The impact of non-Abelian gauge fields on chiral dynamics of ultracold atoms is now explored using a momentum-space lattice technique.

    • Qian Liang
    • Zhaoli Dong
    • Bo Yan
    Research
    Nature Physics
    Volume: 20, P: 1738-1743

  • The topologically robust generation of acoustic spatiotemporal vortex pulses is reported by utilizing mirror- symmetry breaking meta-gratings, which paves the way for exploring spatiotemporal structured waves in acoustics and beyond.

    • Hongliang Zhang
    • Yeyang Sun
    • Zhichao Ruan
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • The limits of topological protection in photonic systems remain unclear. Here, Gao et al. construct photonic topological edge states and probe their robustness against a variety of defect classes, including some common time-reversal-invariant photonic defects that can break the topological protection.

    • Fei Gao
    • Zhen Gao
    • Baile Zhang
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-9

  • By introducing a further modal dimension to transform a two-dimensional photonic waveguide array, a photonic topological insulator with protected topological surface states in three dimensions, enabled by a screw dislocation, is demonstrated.

    • Eran Lustig
    • Lukas J. Maczewsky
    • Mordechai Segev
    Research
    Nature
    Volume: 609, P: 931-935

  • A three-dimensional photonic topological insulator is presented, made of split-ring resonators with strong magneto-electric coupling, which has an extremely wide topological bandgap, forbidding light propagation.

    • Yihao Yang
    • Zhen Gao
    • Hongsheng Chen
    Research
    Nature
    Volume: 565, P: 622-626

  • The authors theoretically investigate a novel form of a Doppler effect in homogeneous systems with positive refractive index that occurs under certain conditions. It is suggested that this Doppler effect can be experimentally separated from other Doppler effects by using polaritons such as those found in graphene.

    • Xihang Shi
    • Xiao Lin
    • Baile Zhang
    Research
    Nature Physics
    Volume: 14, P: 1001-1005