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New horizons: Scalar and vector ultralight dark matter
The last decade has seen unprecedented effort in dark matter model building at all mass
scales coupled with the design of numerous new detection strategies. Transformative …
scales coupled with the design of numerous new detection strategies. Transformative …
176Lu+ clock comparison at the 10−18 level via correlation spectroscopy
The extreme precision of optical atomic clocks has led to an anticipated redefinition of the
second by the International System of Units. Furthermore, accuracies pushing the boundary …
second by the International System of Units. Furthermore, accuracies pushing the boundary …
Simultaneous bicolor interrogation in thulium optical clock providing very low systematic frequency shifts
Optical atomic clocks have already overcome the eighteenth decimal digit of instability and
uncertainty, demonstrating incredible control over external perturbations of the clock …
uncertainty, demonstrating incredible control over external perturbations of the clock …
Prospects of a Ion Clock
K Beloy - Physical review letters, 2021 - APS
We propose a high-performance atomic clock based on the 1.81 PHz transition between the
ground and first-excited state of doubly ionized lead. Utilizing an even isotope of lead, both …
ground and first-excited state of doubly ionized lead. Utilizing an even isotope of lead, both …
Multi-ion frequency reference using dynamical decoupling
L Pelzer, K Dietze, VJ Martínez-Lahuerta, L Krinner… - Physical Review Letters, 2024 - APS
We present the experimental realization of a continuous dynamical decoupling scheme
which suppresses leading frequency shifts in a multi-ion frequency reference based on Ca+ …
which suppresses leading frequency shifts in a multi-ion frequency reference based on Ca+ …
Simultaneous preparation of two initial clock states in a thulium optical clock
Because of the low sensitivity of a thulium optical clock to black-body radiation and good
accuracy and stability estimations, it is considered as a promising transportable optical …
accuracy and stability estimations, it is considered as a promising transportable optical …
Coherent suppression of tensor frequency shifts through magnetic field rotation
We introduce a scheme to coherently suppress second-rank tensor frequency shifts in
atomic clocks, relying on the continuous rotation of an external magnetic field during the free …
atomic clocks, relying on the continuous rotation of an external magnetic field during the free …
Operating a multi-ion clock with dynamical decoupling
We study and characterize a quasicontinuous dynamical decoupling scheme that effectively
suppresses dominant frequency shifts in a multi-ion optical clock. Addressing the challenge …
suppresses dominant frequency shifts in a multi-ion optical clock. Addressing the challenge …
Quadrupole transitions and quantum gates protected by continuous dynamic decoupling
VJ Martínez-Lahuerta, L Pelzer, K Dietze… - Quantum Science …, 2023 - iopscience.iop.org
Dynamical decoupling techniques are a versatile tool for engineering quantum states with
tailored properties. In trapped ions, nested layers of continuous dynamical decoupling …
tailored properties. In trapped ions, nested layers of continuous dynamical decoupling …
Combined microwave and optical spectroscopy for hyperfine structure analysis in thulium atoms
We present refined values of the hyperfine splitting frequencies of the ground| g〉=| 4 f 13 (2
F o) 6 s 2, J= 7/2〉 and clock| c〉=| 4 f 13 (2 F o) 6 s 2, J= 5/2〉 states of thulium atoms, fg …
F o) 6 s 2, J= 7/2〉 and clock| c〉=| 4 f 13 (2 F o) 6 s 2, J= 5/2〉 states of thulium atoms, fg …