365 citations · 1.1k across the 12 of their papers we have counts for
8 papers · 1 filter
International comparison of optical frequencies with transportable optical lattice clocks
International Clock, Oscillator Networking, Collaboration +37
Optical clocks have improved their frequency stability and estimated accuracy by more than two orders of magnitude over the best caesium microwave clocks that realise the SI second…
Absolute frequency measurements on the PD transition in strontium
S. Zhang, B. T. Tiwari, S. Ganesh +2
We report the first absolute frequency measurements for the PD transition at 394 nm for all the stable strontium isotopes by utilizing repumping in…
Collective scattering in lattice-trapped Sr atoms via dipole-dipole interactions
Shengnan Zhang, Sandhya Ganesh, Balsant Shivanand Tiwari +2
We investigate, based on the coupled dipole model, collective properties of dense Sr ensembles trapped in a three-dimensional (3D) optical lattice in the presence of dipole-dipole…
Novel repumping on PD for Sr magneto-optical trap and Landé g factor measurement of D
Shengnan Zhang, Preetam Ramchurn, Marco Menchetti +4
We realize an experimental facility for cooling and trapping strontium (Sr) atoms and measure the Landé g factor of D of Sr. Thanks to a novel repumping scheme w…
A high-performance optical lattice clock based on bosonic atoms
Stefano Origlia, Mysore Srinivas Pramod, Stephan Schiller +9
Optical lattice clocks with uncertainty and instability in the -range and below have so far been demonstrated exclusively using fermions. Here, we demonstrate a bosonic o…
Development of a strontium optical lattice clock for the SOC mission on the ISS
S. Origlia, S. Schiller, M. S. Pramod +25
The ESA mission "Space Optical Clock" project aims at operating an optical lattice clock on the ISS in approximately 2023. The scientific goals of the mission are to perform tests…