WebMar 22, 2024 · We demonstrate good agreement between this model and measurements of the background light shift from an amplified diode laser in an Yb optical lattice clock. Additionally, we model and experimentally characterize the filtering effect of a volume Bragg grating bandpass filter, demonstrating that application of the filter can reduce background … WebMar 28, 2024 · We experimentally investigate the lattice-induced light shift by the electric-quadrupole (E2) and magnetic-dipole (M1) polarizabilities and the hyperpolarizability in Sr …
空间锶原子光钟若干关键技术研究_全球科研项目库_中国工程科技 …
WebSep 18, 2024 · -16, which is mainly limited by the lattice-induced light shift and the blackbody radiation shift. Our evaluation of the lattice-induced light shift, the density shift, and the second-order Zeeman shift is based on an interleaved measurement where we measure the frequency shift using the alternating stabilization of a clock laser to the 6s 21S Web空间光钟可以作为建立基于空间的超高精度时间频率平台,可对物理世界做更为精确的探测,对基础科学研究和实际应用都有重要的意义。本项目计划开展锶原子光钟作为有效载荷置于空间飞行器上的研究,突破空间锶原子光钟研制中的关键技术难题。由于空间光钟在体积、质量、功耗、可靠性等 ... self flying drone with gps
Optical Lattices: Webs of Light NIST
WebThe þ þ s-wave scattering phase shift is determined below the inelastic threshold using lattice QCD. Calculations were performed at a pion mass of m 390 MeV with an anisotropic n f ¼ 2þ1 clover fermion discretization in four lattice volumes, with spatial extent L 2:0, 2.5, 3.0 and 3.9 fm, and with a WebDec 31, 2024 · We experimentally investigate the lattice-induced light shift by the electric-quadrupole () and magnetic-dipole () polarizabilities and the hyperpolarizability in Sr optical lattice clocks. Precise control of the axial as well as the radial motion of atoms in a one-dimensional lattice allows observing the - polarizability difference. Webhyperpolarizability and lattice magic frequency ν magic [35–38]. Theoretical studies suggest that these higher-order light shifts yield lattice-band-dependent effects [34,39–41] which vary with atomic temperature, compli-cating characterization of the light shift and its appropriate extrapolation to zero. In this Letter, we extend the theory self folding chair magic