Author: Alexander Guttridge Publisher: Springer ISBN: 3030212017 Category : Science Languages : en Pages : 206
Book Description
This thesis lays the groundwork for producing a new class of ultracold molecule by associating an alkali-metal atom and a closed-shell alkaline-earth-like atom, specifically Cs and Yb. Such molecules exhibit both a magnetic dipole moment and an electric dipole moment in their ground state. This extra degree of freedom opens up new avenues of research including the study of exotic states of matter, the shielding of molecular collisions and the simulation of lattice spin models. In detail, the thesis reports the first and only ultracold mixture of Cs and Yb in the world, giving details of the methods used to cool such contrasting atomic species together. Using sensitive two-colour photoassociation measurements to measure the binding energies of the near-threshold CsYb molecular levels in the electronic ground state has allowed the previously unknown scattering lengths to be accurately determined for all the Cs–Yb isotopic combinations. As part of this work, the one-photon photoassociation of ultracold Cs*Yb is also studied, yielding useful information on the excited-state potential. Knowledge of the scattering lengths enables a strategy to be devised to cool both species to quantum degeneracy and, crucially, determines the positions of interspecies Feshbach resonances required for efficient association of ground-state CsYb molecules. With these results, the prospect of bringing a new molecule into the ultracold regime has become considerably closer.
Author: Iosif B. Khriplovich Publisher: Springer Science & Business Media ISBN: 3642608388 Category : Science Languages : en Pages : 241
Book Description
Electric dipole moments (EDMs) have interested physicists since 1950, when it was first suggested that there was no experimental evidence that nuclear forces are symmetric under parity (P) transformation. This question was regarded as speculative because the existence of an EDM, in addition to P violation, requires a violation of time-reversal (T) symmetry. In 1964 it was discovered that the invariance under CP transformation, which combines charge conjugation (C) with parity, is violated in K-meson decays. This provided a new incentive for EDM searches. Since the combined operations of CPT are expected to leave a system invariant, breakdown of CP invariance should be accompanied by a violation of time-reversal symmetry. Thus there is a reason to expect that EDMs should exist at some level. The original neutron EDM experiments were later supplemented with checks of T invariance in atoms and molecules. These investigations are pursued now by many groups. Over the years, the upper limit on the neutron EDM has been improved by seven orders of magnitude, and the upper limit on the electron EDM obtained in atomic experiments is even more strict.
Author: Penelope Smith Publisher: Simon and Schuster ISBN: 1439123195 Category : Nature Languages : en Pages : 195
Book Description
A straightforward, easy-to-understand book that teaches you how to directly communicate with animals. Animal Talk teaches you how to open the door to your animal friends’ hearts and minds without resorting to magic tricks or wishful thinking. Every creature can be reached through telepathic communication—from your tabby cat or cockatiel to the wasps that build nests in the eaves of your home or even the common flea—you just have to be open to the idea, and mind-to-mind communication will be in your grasp. In addition to an entire chapter devoted to teaching people how to develop mind-to-mind communication with animals, Animal Talk includes a discussion of freedom, control, and obedience, understanding behaviors from the animal’s point of view, how to handle upsets between animals, tips on nutrition for healthier pets, and the special relationship between animals and children.
Author: Olivier Dulieu Publisher: Royal Society of Chemistry ISBN: 1788013557 Category : Science Languages : en Pages : 692
Book Description
Recent years have seen tremendous progress in research on cold and controlled molecular collisions, both in theory and in experiment. The advent of techniques to prepare cold and ultracold molecules and ions, to store them in optical lattices or in charged quasicristalline structures, and to use them in crossed or merged beam experiments have opened many new possibilities to study the most fundamental aspects of molecular interactions. At the same time, theoretical work has made progress in tackling these problems and accurately describing quantum effects in complex systems, and in proposing viable options to control chemical reactions at ultralow energies. Through tutorials on both the theoretical and experimental aspects of research in cold and ultracold molecular collisions, this book provides advanced undergraduate students, graduate students and researchers with the foundations needed to understand this exciting field.
Author: Matthias Weidemüller Publisher: John Wiley & Sons ISBN: 3527635076 Category : Science Languages : en Pages : 519
Book Description
Arising from a workshop, this book surveys the physics of ultracold atoms and molecules taking into consideration the latest research on ultracold phenomena, such as Bose Einstein condensation and quantum computing. Several reputed authors provide an introduction to the field, covering recent experimental results on atom and molecule cooling as well as the theoretical treatment.
Author: Jessa James Publisher: KSA Publishing Consultants ISBN: Category : Fiction Languages : en Pages : 74
Book Description
Kit Buchanan Ten years ago, I let her go. She loved me when I was nothing. I have platinum albums, money, fame. I have everything I want…everything but her. Crystal Kerry I was shy. Eighteen. And so in love I was ready to give up everything. Only he wouldn’t let me. He broke my heart. Pushed me away. Now he’s back. He’s a rock star, a bad boy, a total egomaniac, a tattoo covered rock god with naked women begging for his attention. Everybody wants a piece of him. Everyone but me. Been there, done that. My heart shattered into a million pieces when he left and I never really put myself back together. I’m broken on the inside. I loved him. Trusted him. And he ruined me. Only a complete idiot would let him get close. But when he touches me, I melt. My heart races. I crave him. Guess I’m not that smart after all… Kit Buchanan She was a siren. Used to be shy and so sweet I wanted to drown in her innocence, in the way she looked at me. Crystal rocked my world, rocked me. But she was going to ruin her life for a loser, a wanna-be rock star with no money and no prospects. I hurt her. I had to. But none of that matters now. I want her back. I need her. I need to look into those baby-blue eyes and hear her soft cries of surrender. I remember what it felt like to hold her. To love her. To know she was mine. She’s still mine. She just doesn’t know it yet.
Author: Alexander Guttridge
Author: Selim Jochim
Author: Iosif B. Khriplovich
Author: Penelope Smith
Author: Olivier Dulieu
Author: Malcolm W. Jr. Chase
Author: Matthias Weidemüller
Author: V. S. Yungman
Author: Jessa James
Author: Thomas Scott