Chetan Vishwakarma

activity

20242026

collaborators

3 papers

physics.atom-ph2026

Interspecies clock comparison below $5 \times 1 0^{- 18}$ uncertainty with a transportable clock

Chetan Vishwakarma, Ingo Nosske, Tim LÃ¼cke +6

We report a measurement of the optical frequency ratio between the $^{2} S_{1/2} (F = 0)$ -- $^{2} F_{7/2} (F = 3)$ electric-octupole (E3) transition of $^{171}$ Yb $^{+}$ and…

physics.atom-ph2025

Transportable strontium lattice clock with $4 \times 1 0^{- 19}$ blackbody radiation shift uncertainty

I. Nosske, C. Vishwakarma, T. LÃ¼cke +6

We describe a transportable optical lattice clock based on the $^{1} S_{0} \to^{3} P_{0}$ transition of lattice-trapped $^{87}$ Sr atoms with a total systematic u…

physics.atom-ph2024

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…

Interspecies clock comparison below 5×10−18 uncertainty with a transportable clock

Transportable strontium lattice clock with 4×10−19 blackbody radiation shift uncertainty

International comparison of optical frequencies with transportable optical lattice clocks

Interspecies clock comparison below $5 \times 1 0^{- 18}$ uncertainty with a transportable clock

Transportable strontium lattice clock with $4 \times 1 0^{- 19}$ blackbody radiation shift uncertainty