I will introduce the BECOLA/RISE facility at FRIB for laser spectroscopy and give some science examples and future programs of the project.
The ATLAS accelerator facility at Argonne offers many unique opportunities to perform experiments on stopped and cooled radioactive beams. I will present an overview of the existing laser spectroscopy program and prospects, focusing on the NuCARIBU source and the N=126 factory.
This talk covers recent algorithmic developments for nuclear lattice simulations and calculations of ab initio nuclear structure. I discuss wavefunction matching, the pinhole algorithm, parametric matrix models, and calculations of the beryllium, carbon, and silicon isotopes. I also present theoretical and experimental evidence for multimodal superfluidity of neutrons.
Halo structures are sensitive threshold phenomena, characterized by weak binding, a large spatial extension, and the emergence of new effective degrees of freedom. As such, they can provide stringent constraints on nuclear forces. In this talk, I will discuss the physics of halo states and explain how high-precision measurements of energies and radii can advance our understanding of nuclear...
This contribution will highlight recent work on ab initio theory predictions of electroweak properties of nuclei. Ab initio calculations are predictive, yet still relatively uncertain when compared to precision measurements. Still such calculations can both guide the interpretation of experimental signals and be calibrated with experimental data to provide more precise predictions.
I will...
Pear-shaped nuclei are expected to enhance the effects of parity and time-reversal symmetry violation by a few or more orders of magnitude. A high density of nuclei implanted in transparent cryogenic solids as either atomic ions or neutral molecules, where the internal electric field at the nucleus far exceeds that of typical laboratory electric fields, may be an efficient platform for...
This talk covers the ongoing effort and plans at FRIB to perform quantum control and sensing of Th227O molecules, for a new generation of Nuclear Schiff Moment search. Photon-cycling scheme, rotational-state cooling scheme, and single quantum state preparation and readout schemes will be discussed. In addition, I'm presenting the plan towards a laser-less approach to produce cold species for...
The Low-Energy Beam and Ion Trap (LEBIT) facility [1] at the recently commissioned Facility for Rare Isotope Beams (FRIB) remains the only facility that employs Penning trap mass spectrometry for high-precision mass measurements of rare isotopes produced via projectile fragmentation. This powerful combination of a fast, chemically insensitive rare isotope production method with a...
Precise measurements of nuclear beta decays provide a unique insight into the Standard Model due to their connection to electroweak interactions. These decays can provide constraints on the unitarity or non-unitarity of the Cabbibo-Kobayashi-Maskawa (CKM) quark mixing matrix, where non-unitarity could signal potential physics beyond the Standard Model. The most precise of these tests involves...
Over the past decades, ab initio nuclear theory has made dramatic progress, reaching even heavy nuclei such as 208Pb. Yet, the nature of nuclear forces remains a profound mystery. In this talk, I will first give a brief overview of some of the most commonly used nuclear forces derived from chiral EFT. I will then introduce a new chiral N3LO_Texas two- and three-body interaction, capable of...
This contribution will introduce the current status and ongoing efforts at the NEPTUNE project, a novel experiment to measure parity-violating electroweak nuclear effects. [PRL 133, 033003 (2024)]
In addition, the new Karthein Lab at the Texas A&M will be introduced with various developments for spectroscopy on radioactive atoms and molecules at the on-campus Cyclotron Institute.
We present a new experiment to measure the Schiff Moment of 229ThF+ molecular ions. Th-229 has a potentially large Schiff Moment from the octupole deformation. The ions are efficiently available by α-recoil from U-233. ThF+’s electronic structure is well known from JILA’s studies. By combining the efficient ion manipulation techniques, we hope to overcome the rare amount of radioactive species.
In this presentation, I will discuss an ongoing experiment aimed at exploring physics beyond the Standard Model through precision measurements of trapped molecular ions. By combining techniques from trapped-ion quantum information processing with the intrinsic sensitivity of molecules, we are developing a tabletop platform to probe Charge–Parity (CP) violation in the hadronic sector. Such...
We present a proposal for implementing cavity quantum electrodynamics (cavity QED) with cold molecules to enable quantum-enhanced sensing for fundamental physics. By exploiting the rich internal structure of molecules, this approach has the potential to surpass the Standard Quantum Limit through engineered spin-squeezed states generated via strong light–matter coupling in a high-finesse...
