Early Career Conference in Trapped Ions (ECCTI) 2022

Session

Precision Spectroscopy

29 Jun 2022, 09:00

503/1-001 - Council Chamber (CERN)

Conveners

Precision Spectroscopy

• Laura Blackburn

48. Towards quantum control and spectroscopy of a single hydrogen molecular ion

David Holzapfel (ETH Zurich)

29/06/2022, 09:00

Precision Spectroscopy

Talk

The complexity and variety of molecules offer opportunities for metrology and quantum information that go beyond what is possible with atomic systems. The hydrogen molecular ion is the simplest of all molecules and can thus be calculated ab initio to very high precision [1]. Combined with spectroscopy this allows to determine fundamental constants and test fundamental theory at record...

3. Tests of QED with singly-ionized helium

Andres Martinez de Velasco (Vrije Universiteit Amsterdam (NL))

29/06/2022, 09:23

Precision Spectroscopy

Talk

The 1S-2S transition of hydrogenic systems is a benchmark for tests of fundamental physics [1]. The most prominent example is the 1S-2S transition in atomic hydrogen, where impressive relative accuracies have been achieved [2-3]. Nowadays, these fundamental physics tests are hampered by estimates of uncalculated higher-order QED terms and the uncertainties in the fundamental constants required...

9. Penning-trap mass spectrometry using an unbalanced crystal and optical detection

Joaquín Berrocal (Universidad de Granada (ES))

29/06/2022, 09:45

Precision Spectroscopy

Talk

A novel Penning-trap mass spectrometry technique based on optical detection is under development at the University of Granada. This technique is universal, non-destructive, and single ion-sensitive. The scattered photons by a $^{40}$Ca$^{+}$ ion will be used to measure the normal mode eigenfrequencies of the unbalanced crystal formed by this ion and a target one [1] when the crystal is cooled...

58. Measurement of the $^{88}\text{Sr}^{+}$ $S_{1/2}$ $\rightarrow$ $D_{5/2}$ / $^{171}\text{Yb}^{+}$ $S_{1/2}$ $\rightarrow$ $F_{7/2}$ frequency ratio with in-situ BBR shift evaluation

Martin Steinel (Physikalisch-Technische Bundesanstalt)

29/06/2022, 10:08

Atomic Clocks

Talk

A significant contribution to the uncertainty budgets of optical clocks based on the $^{171}\text{Yb}^{+}$ $S_{1/2}$ $\rightarrow$ $F_{7/2}$ electric octupole (E3) transition results from the Stark shift induced by black-body radiation (BBR) of the environment of the trapped ion. Even if precise knowledge on the thermal environment is available, uncertainty in the sensitivity of the shift to...