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Author: Kon H. Leung Publisher: Springer Nature ISBN: 3031476476 Category : Science Languages : en Pages : 173
Book Description
This thesis describes how the rich internal degrees of freedom of molecules can be exploited to construct the first “clock” based on ultracold molecules, rather than atoms. By holding the molecules in an optical lattice trap, the vibrational clock is engineered to have a high oscillation quality factor, facilitating the full characterization of frequency shifts affecting the clock at the hertz level. The prototypical vibrational molecular clock is shown to have a systematic fractional uncertainty at the 14th decimal place, matching the performance of the earliest optical atomic lattice clocks. As part of this effort, deeply bound strontium dimers are coherently created, and ultracold collisions of these Van der Waals molecules are studied for the first time, revealing inelastic losses at the universal rate. The thesis reports one of the most accurate measurements of a molecule’s vibrational transition frequency to date. The molecular clock lays the groundwork for explorations into terahertz metrology, quantum chemistry, and fundamental interactions at atomic length scales.
Author: Kon H. Leung Publisher: Springer Nature ISBN: 3031476476 Category : Science Languages : en Pages : 173
Book Description
This thesis describes how the rich internal degrees of freedom of molecules can be exploited to construct the first “clock” based on ultracold molecules, rather than atoms. By holding the molecules in an optical lattice trap, the vibrational clock is engineered to have a high oscillation quality factor, facilitating the full characterization of frequency shifts affecting the clock at the hertz level. The prototypical vibrational molecular clock is shown to have a systematic fractional uncertainty at the 14th decimal place, matching the performance of the earliest optical atomic lattice clocks. As part of this effort, deeply bound strontium dimers are coherently created, and ultracold collisions of these Van der Waals molecules are studied for the first time, revealing inelastic losses at the universal rate. The thesis reports one of the most accurate measurements of a molecule’s vibrational transition frequency to date. The molecular clock lays the groundwork for explorations into terahertz metrology, quantum chemistry, and fundamental interactions at atomic length scales.
Author: Mickey McDonald Publisher: Springer ISBN: 3319687352 Category : Science Languages : en Pages : 193
Book Description
This thesis unites the fields of optical atomic clocks and ultracold molecular science, laying the foundation for optical molecular measurements of unprecedented precision. Building upon optical manipulation techniques developed by the atomic clock community, this work delves into attaining surgical control of molecular quantum states. The thesis develops two experimental observables that one can measure with optical-lattice-trapped ultracold molecules: extremely narrow optical spectra, and angular distributions of photofragments that are ejected when the diatomic molecules are dissociated by laser light pulses. The former allows molecular spectroscopy approaching the level of atomic clocks, leading into molecular metrology and tests of fundamental physics. The latter opens the field of ultracold chemistry through observation of quantum effects such as matter-wave interference of photofragments and tunneling through reaction barriers. The thesis also describes a discovery of a new method of thermometry that can be used near absolute zero temperatures for particles lacking cycling transitions, solving a long-standing experimental problem in atomic and molecular physics.
Author: Paul R. Berman Publisher: Academic Press ISBN: 012385508X Category : Science Languages : en Pages : 562
Book Description
Advances in Atomic, Molecular, and Optical Physics publishes reviews of recent developments in a field which is in a state of rapid growth, as new experimental and theoretical techniques are used on many old and new problems. Topics covered include related applied areas, such as atmospheric science, astrophysics, surface physics and laser physics. Articles are written by distinguished experts, and contain both relevant review material and detailed descriptions of important recent developments. International experts Comprehensive articles New developments
Author: Publisher: Academic Press ISBN: 0128142162 Category : Science Languages : en Pages : 480
Book Description
Advances in Atomic, Molecular, and Optical Physics, Volume 67, provides a comprehensive compilation of recent developments in a field that is in a state of rapid growth. Topics covered include related applied areas, such as atmospheric science, astrophysics, surface physics, and laser physics, with timely articles written by distinguished experts that contain relevant review materials and detailed descriptions of important developments in the field. - Presents the work of international experts in the field - Contains comprehensive articles that compile recent developments in a field that is experiencing rapid growth, with new experimental and theoretical techniques emerging - Ideal for users interested in optics, excitons, plasmas and thermodynamics - Topics covered include atmospheric science, astrophysics, and surface and laser physics, amongst others
Author: Slava G Turyshev Publisher: World Scientific ISBN: 9814468444 Category : Science Languages : en Pages : 764
Book Description
Space-based laboratory research in fundamental physics is an emerging research discipline that offers great discovery potential and at the same time could drive the development of technological advances which are likely to be important to scientists and technologists in many other different research fields. The articles in this review volume have been contributed by participants of the international workshop “From Quantum to Cosmos: Fundamental Physics Research in Space” held at the Airlie Center in Warrenton, Virginia, USA, on May 21-24, 2006. This unique volume discusses the advances in our understanding of fundamental physics that are anticipated in the near future, and evaluates the discovery potential of a number of recently proposed space-based gravitational experiments. Specific research areas covered include various tests of general relativity and alternative theories, search of physics beyond the Standard Model, investigations of possible violations of the equivalence principle, search for new hypothetical long- and short-range forces, variations of fundamental constants, tests of Lorentz invariance and attempts at unification of the fundamental interactions. The book also encompasses experiments aimed at the discovery of novel phenomena, including dark matter candidates, and studies of dark energy.
Author: J. Dilling Publisher: Springer Science & Business Media ISBN: 354073466X Category : Science Languages : en Pages : 460
Book Description
The TCP06 conference in Canada showcased the impressive progress in the study of fundamental physics using trapped charged particles. The combination of overview articles by leaders in the field and detailed reports on recent research results will without doubt make these proceedings an extremely useful reference for researchers within the community, but also for those who study similar physics with different techniques, or use trapping methods for different purposes.
Author: R Srivastava Publisher: ALPHA SCIENCE INTERNATIONAL LIMITED ISBN: 8184875312 Category : Science Languages : en Pages : 244
Book Description
ATOMIC AND MOLECULAR PHYSICS: Introduction to Advanced Topics introduces advanced topics of Atomic and Molecular Collision Physics covering Atomic structure calculations, Photoionization of atomic systems, Electron-atom collisions, Ion-atom collisions, Collisions involving exotic particles, Ultracold atoms and Bose-Einstein condensation as well as Atomic data and Plasma diagnostics. This volume is very useful to start research in theoretical and experimental Atomic and Molecular Physics. The book is also helpful to those working in interrelated research areas like Laser physics, Astrophysics and Plasma and Fusion research where such a background of theoretical Atomic Collision Physics is an integral part.
Author: Christian Roos Publisher: American Institute of Physics ISBN: 9780735403673 Category : Science Languages : en Pages : 344
Book Description
The 20th International Conference on Atomic Physics brought together more than 800 scientists discussing the most recent advances in atomic physics. Among other topics, this book covers new trends in quantum information, the physics of cold degenerate gases, cold molecules and precision measurements discussed by experts in the respective fields.
Author: National Research Council Publisher: National Academies Press ISBN: 0309127378 Category : Science Languages : en Pages : 66
Book Description
The mission of the NIST Physics Laboratory is to support U.S. industry, government, and the scientific community by providing measurement services and research for electronic, optical, and radiation technology. In this respect, the laboratory provides the foundation for the metrology of optical and ionizing radiations, time and frequency, and fundamental quantum processes, historically major areas of standards and technology. The Panel on Physics visited the six divisions of the laboratory and reviewed a selected sample of their programs and projects. This book finds that the overall quality and productivity of the Physics Laboratory are comparable to or better than those of other peer institutions, an accomplishment that is being achieved with an infrastructure that is smaller in both size and funding than the size and funding of most national and agency laboratories in the United States.
Author: International Union of Pure and Applied Chemistry. Physical and Biophysical Chemistry Division Publisher: Royal Society of Chemistry ISBN: 0854044337 Category : Reference Languages : en Pages : 240
Book Description
Prepared by the IUPAC Physical Chemistry Division this definitive manual, now in its third edition, is designed to improve the exchange of scientific information among the readers in different disciplines and across different nations. This book has been systematically brought up to date and new sections added to reflect the increasing volume of scientific literature and terminology and expressions being used. The Third Edition reflects the experience of the contributors with the previous editions and the comments and feedback have been integrated into this essential resource. This edition has been compiled in machine-readable form and will be available online.
Author: Kon H. Leung
Author: Kon H. Leung
Author: Mickey McDonald
Author: Paul R. Berman
Author: 
Author: Slava G Turyshev
Author: J. Dilling
Author: R Srivastava
Author: Christian Roos
Author: National Research Council
Author: International Union of Pure and Applied Chemistry. Physical and Biophysical Chemistry Division