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Showing 1–11 of 11 results
Advanced filters: Author: Yu-Kun Lu Clear advanced filters

  • precisely controllable integrated optical gyroscope based on stimulated Brillouin scattering is used to study non-Hermitian physics, revealing a four-fold enhancement of the Sagnac scale factor near exceptional points.

    • Yu-Hung Lai
    • Yu-Kun Lu
    • Kerry Vahala
    Research
    Nature
    Volume: 576, P: 65-69

  • A study shows that the nucleation of vortices in dipolar supersolids can be revealed by the onset of rotational synchronization.

    • Yu-Kun Lu
    News & Views
    Nature Physics
    Volume: 21, P: 1692-1693

  • A Sagnac gyroscope based on Brillouin ring lasers on a silicon chip is presented. The stability and sensitivity of this on-chip planar gyroscope allow measurement of the Earth’s rotation, with an amplitude sensitivity as small as 5 deg h−1 for a sinusoidal rotation, an angle random walk of 0.068 deg h−1/2 and bias instability of 3.6 deg h−1.

    • Yu-Hung Lai
    • Myoung-Gyun Suh
    • Kerry Vahala
    Research
    Nature Photonics
    Volume: 14, P: 345-349

  • Many applications of ultracold molecules require high densities that have been difficult to reach. An experiment now demonstrates the tight magnetic confinement of ultracold molecules, enabling the study of molecular collisions in the quantum regime.

    • Juliana J. Park
    • Yu-Kun Lu
    • Wolfgang Ketterle
    Research
    Nature Physics
    Volume: 19, P: 1567-1572

  • Observations of a pronounced and narrow Feshbach resonance in collisions between two triplet ground-state NaLi molecules are described, providing evidence for the existence of long-lived coherent intermediate complexes even in systems without reaction barriers.

    • Juliana J. Park
    • Yu-Kun Lu
    • Wolfgang Ketterle
    Research
    Nature
    Volume: 614, P: 54-58

  • In bosonic systems, the presence of particles in a given quantum level can enhance the transition rates into that state, an effect known as bosonic stimulation. Bosonic enhancement of light scattering has now been observed in an ultracold Bose gas.

    • Yu-Kun Lu
    • Yair Margalit
    • Wolfgang Ketterle
    Research
    Nature Physics
    Volume: 19, P: 210-214

  • The directional lasing emission in whispering gallery microcavities typically resorts to breaking the structure symmetry. Here the authors demonstrate a reconfigurable symmetry-broken microlaser in a symmetric ultrahigh-Q whispering gallery microcavity, in which a chirality of lasing fields is empowered spontaneously by nonlinear effects.

    • Qi-Tao Cao
    • Ruishan Liu
    • Yun-Feng Xiao
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-7

  • Gravitational wave astronomy has opened the door to test general relativity and the effect of gravity in the Universe. The authors present the capabilities of an overlap between space gravitational wave detectors LISA and Taiji to constrain the Hubble constant to 0.5%, in 10 years, and what can be learned from the satellite pilot Taiji-1 launched in 2019.

    • Yue-Liang Wu
    • Zi-Ren Luo
    • Zi-Ming Zou
    ReviewsOpen Access
    Communications Physics
    Volume: 4, P: 1-7