A5065778954- Atomic and Subatomic Physics Research
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced NMR Techniques and Applications
- Quantum Information and Cryptography
- Nuclear physics research studies
- Optical properties and cooling technologies in crystalline materials
- Molecular spectroscopy and chirality
- Spectroscopy and Laser Applications
- Dark Matter and Cosmic Phenomena
- Lanthanide and Transition Metal Complexes
- Quantum Electrodynamics and Casimir Effect
- Quantum optics and atomic interactions
- Various Chemistry Research Topics
- Quantum, superfluid, helium dynamics
- Radioactive Decay and Measurement Techniques
- Crystallography and Radiation Phenomena
- Radiation Detection and Scintillator Technologies
- Quantum Chromodynamics and Particle Interactions
- Mechanical and Optical Resonators
- Pulsars and Gravitational Waves Research
- Particle Accelerators and Free-Electron Lasers
- Geophysics and Gravity Measurements
- Atomic and Molecular Physics
Columbia University
2020-2021
The Cold molecule Nuclear Time-Reversal EXperiment (CeNTREX) is a new effort aiming for significant increase in sensitivity over the best present upper bounds on strength of hadronic time reversal ($T$) violating fundamental interactions. experimental signature will be shifts nuclear magnetic resonance frequencies $^{205}$Tl electrically-polarized thallium fluoride (TlF) molecules. Here we describe motivation studying these $T$-violating interactions and using TlF to do so. To achieve higher...
The aim of CeNTREX (Cold Molecule Nuclear Time-Reversal Experiment) is to search for time-reversal symmetry violation in the thallium nucleus, by measuring Schiff moment $^{205}$Tl polar molecule fluoride (TlF). uses a cryogenic beam TlF with rotational temperature 6.3(2) K. This results population spread over dozens and hyperfine sublevels TlF, while only single level useful measurement. Here we present protocol cooling degrees freedom beam, transferring majority Boltzmann distribution into...
We present the first experimental demonstration of radiation pressure force deflection and direct laser cooling for barium monohydride (BaH) molecules resulting from multiple photon scattering. Despite a small recoil velocity (2.7 mm/s) long excited state lifetime (137 ns), we use 1060 nm light exciting $X\rightarrow A$ electronic transition BaH to deflect cryogenic buffer-gas beam reduce its transverse spread. Multiple methods are employed characterize optical cycling dynamics benchmark...
Recent theoretical investigations have indicated that rapid optical cycling should be feasible in complex polyatomic molecules with diverse constituents, geometries and symmetries. However, as a composite molecular mass grows, so does the required number of photon scattering events necessary to decelerate confine beams using laser light. Utilizing coherent momentum exchange between light fields can suppress spontaneous emission significantly reduce experimental complexity for slowing...