It is virtually assured that the new experimental capabilities in this area will lead to a rapid expansion of this list. There are presently an intriguing variety of phenomena that await theoretical explanation. On the theoretical side, the ability to model complex systems and complex processes has increased dramatically in recent years, due in part to progress in computational physics. New concepts for intense positron sources and the development of positron accumulators and trap-based positron beams provide qualitatively new experimental capabilities. The timeliness of this subject comes from several considerations. The emphasis is on positron and positronium interactions both with themselves and with ordinary matter. The aim of this book (similar in theme to the workshop) is to present an overview of new directions in antimatter physics and chemistry research. This volume is the outgrowth of a workshop held in October, 2000 at the Institute for Theoretical Atomic and Molecular Physics at the Harvard- Smithsonian Center for Astrophysics in Cambridge, MA. Contents: Positron Sources and Beams Antihydrogen, Bose-Condensed Positronium, and more. (5) Laser cooling of antihydrogen (ALPHA at CERN) for CPT violation and matter-antimatter gravity measurements.Presents a state-of-the-art view, with emphasis on the nanoscopic interactions of positronium atoms with ordinary matter. (4) Measurement of the electric dipole moment (EDM) of the neutron (TUCAN at TRIUMF) for CP violation (3) Parity violation in chiral molecules and the search for the origin of homochirality (2) High resolution matrix isolation spectroscopy of molecules in parahydrogen crystals and superfluid helium nano-droplets. (1) Deceleration and trapping of cold free radicals The projects we are actively working on include: Momose is also involved in research projects in sub-atomic physics (SAP) for the study of fundamental symmetries. All the projects on cold molecule research are supported by CFI (Canada Foundation for Innovation) under CRUCS (Canadian Centre for Researches on Ultra-Cold Systems) and CHIROS (Chirality Research on Origins and Separation). They include Zeeman and Stark decelerators, counter rotating nozzles, microwave molecular traps, and parahydrogen and superfluid helium matrix systems. Momose's laboratory in order to explore the properties of cold molecules below 4 K. Although it is still challenging to make cold molecules of chemical interest, recent technical advancements in cooling and trapping of molecules below 1K, including our contributions, allow for their application in various topics in physics and chemistry, which would offer a completely new field of research in physical chemistry and chemical physics.Ĭurrently, various apparatuses for making cold and ultracold molecules are operational in Prof. We are especially interested in parity violation in chiral molecules, which may be the source of homochirality of bio-molecules. In Physics, we are applying cold molecules for the study of symmetry breakdown in nature. Quantum effects, emerging from thermal averages, such as tunneling, resonance effects, and the increase of the wave nature of molecules becomes more pronounced at low temperatures. The nature of chemical reactions at low temperatures may be significantly different than those at above room temperature. In chemistry, we are exploring exotic chemical dynamics intrinsic to cold molecules. Research in Professor Momose's group aims to explore the physics and chemistry of extremely cold molecules, and use cold and ultracold molecules for various applications in a wide range of scientific domains.
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