Precision determination of the state lifetime of single ion

H Shao, H Yue, Z Ma, Y Huang, H Guan, K Gao - Physical Review Research, 2023 - APS
We present a method to precisely determine the D 3/2 2 state lifetime of a single trapped
Yb+ 174 ion. This method is based on the detection of photons emitted from excited states …

Scalable hyperfine qubit state detection via electron shelving in the and manifolds in

CL Edmunds, TR Tan, AR Milne, A Singh, MJ Biercuk… - Physical Review A, 2021 - APS
Qubits encoded in hyperfine states of trapped ions are ideal for quantum computation given
their long lifetimes and low sensitivity to magnetic fields, yet they suffer from off-resonant …

Weak dissipation for high-fidelity qubit-state preparation and measurement

A Ransford, C Roman, T Dellaert, P McMillin… - Physical Review A, 2021 - APS
We demonstrate a method of qubit state preparation and measurement (SPAM) based on a
weakly open quantum channel that achieves a higher fidelity than previous demonstrations …

Robust and scalable rf spectroscopy in first-order magnetic sensitive states at second-long coherence time

CH Yeh, KC Grensemann, LS Dreissen… - New Journal of …, 2023 - iopscience.iop.org
Trapped-ion quantum sensors have become highly sensitive tools for the search of physics
beyond the Standard Model. Recently, stringent tests of local Lorentz-invariance (LLI) have …

Search for new bosons with ytterbium isotope shifts

M Door, CH Yeh, M Heinz, F Kirk, C Lyu… - arXiv preprint arXiv …, 2024 - arxiv.org
The Standard Model of particle physics describes the properties of elementary particles and
their interactions remarkably well, but in particular does not account for dark matter. Isotope …

Single-ion spectroscopy of four metastable-state clear-out transitions in : Isotope shifts and hyperfine structure

NA Diepeveen, C Robalo Pereira, M Mazzanti… - Physical Review A, 2024 - APS
We present spectroscopic data for four metastable state clear-out transitions between 399
nm and 412 nm for all even long-lived isotopes of Yb+ as well as their hyperfine structure in …

Precision determination of dipole transition elements with a single ion

H Shao, YB Tang, HL Yue, FF Wu, ZX Ma… - Photonics …, 2024 - opg.optica.org
In the field of quantum metrology, transition matrix elements are crucial for accurately
evaluating the black-body radiation shift of the clock transition and the amplitude of the …

Precision spectroscopy of ytterbium ions for tests of fundamental physics

CH Yeh - 2024 - repo.uni-hannover.de
Trapped-ion quantum sensors have become sensitive tools for the search of physics beyond
the Standard Model. In this thesis, a measurement on the test of local Lorentz-invariance …

Calculation of forbidden transitions in doubly ionized neodymium (Nd III) of interest for kilonova nebular phase analysis

L Maison, P Palmeri, P Quinet - Journal of Physics B: Atomic …, 2024 - iopscience.iop.org
In this paper, we present new radiative rate calculations for forbidden transitions, namely
magnetic dipole (M1) and electric quadrupole (E2) transitions, involving all the …

Quantum tomography of a third-order exceptional point in a dissipative trapped ion

YY Chen, K Li, L Zhang, YK Wu, JY Ma… - arXiv preprint arXiv …, 2024 - arxiv.org
The requirement for Hermiticity in quantum mechanics ensures the reality of energies, while
the parity-time symmetry offers an alternative route to achieve this goal. Interestingly, in a …