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Regents Review Live
Regents Review Live

Few-body interactions in an ultracold gas of Cesium atoms
Few-body interactions in an ultracold gas of Cesium atoms

... Efimov quantum states eluded their experimental detection. Now, using the tunability of a universal dimer state in the vicinity of a Feshbach resonance, we have been able to find experimental evidence for the existence of these exotic states in careful measurements of three-body recombination loss a ...
Chapter 3: Ionic and Covalent Compounds Chapter 3: Ionic and
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... 90. All ionic compounds are soluble in water. A) True B) False Ans: B Difficulty: Easy 91. An ionic compound is a pure substance formed by chemically combining two or more nonmetal atoms together. A) True B) False Ans: B Difficulty: Medium 92. A polyatomic ion is an ion that forms more than one char ...
The Thomas-Fermi model: momentum expectation values
The Thomas-Fermi model: momentum expectation values

Chem Course Desc2. New
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... man made through the use of nuclear accelerators. ( C.S. 1.f *) 2.9* Explain the experimental basis for Thomson’s discovery of the electron, Rutherford’s nuclear atom, Millikan’s oil drop experiment, and Einstein’ explanation of the photoelectric effect. ( C.S. 1.h* ) 2.10* Discuss the experimental ...
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... had the rare combination of quiet competence and thoughtfulness that made him an ideal labmate. I thank Takashi for everything he taught me as well as his parting gifts – a bike and a padlock. Our current postdoc Yingmei Liu was my labmate during the last couple of projects. Her tireless work ethic ...
Preprint
Preprint

An interacting Fermi-Fermi mixture at the
An interacting Fermi-Fermi mixture at the

... ultracold Fermi gases (Bourdel et al., 2003). Stable molecular states with a long lifetime are formed by a pair of fermions in highly excited rovibrational states on the repulsive side of the Feshbach resonance with a > 0 (Cubizolles et al., 2003; Strecker et al., 2003). The long lifetimes can excee ...
Physical Sciences Grade 10 Term 2
Physical Sciences Grade 10 Term 2

Interacting Fermionic Atoms in Optical Lattices
Interacting Fermionic Atoms in Optical Lattices

... Nature 444, 733–736 (2006) • Role of Interactions in 87 Rb-40 K Bose-Fermi Mixtures in a 3D Optical ...
Chapter 6 Quantities in Chemical Reactions
Chapter 6 Quantities in Chemical Reactions

Alkali Rydberg States in Electromagnetic Fields
Alkali Rydberg States in Electromagnetic Fields

Photoemission Spectroscopy of a Strongly Interacting Fermi Gas
Photoemission Spectroscopy of a Strongly Interacting Fermi Gas

... eventually the field of quantum information, which seeks to use precise control of quantum states to perform computation. At the same time in the 1980s, there were ongoing developments in the use of lasers to control the motion of atoms, including the demonstration of how to slow atoms, and achieve l ...
c 2012 by Sarang Gopalakrishnan. All rights reserved.
c 2012 by Sarang Gopalakrishnan. All rights reserved.

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... sample of natural copper is vaporized and injected into a mass  spectrometer, the results shown in Fig. 3.3 are obtained. Use  these data to compute the average mass of natural copper.  (The mass values for 63Cu and 65Cu are 62.93 amu and 64.93  ...
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... enjoyed working with them both. With Aviv around, I have no doubt the reservoir of lab humor will never run dry. Thanks Aviv, for the elephant. For the first few years of my doctorate, Carol Costa was a motherly and caring figure in the hallway who could solve any administrative problem we brought h ...
Brilliant Preparatory Section, Sitamarhi
Brilliant Preparatory Section, Sitamarhi

... In this reaction one molecule of oxygen reacts with two molecules of hydrogen. So it would be desirable to take the molecules of H2 and oxygen in the ratio 2:1, so that the reactants are completely consumed during the reaction. But atoms and molecules are so small in size that is not possible to cou ...
Chapter 3
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Quantum Dynamics of Condensates, Atomtronic Systems, and
Quantum Dynamics of Condensates, Atomtronic Systems, and

... physics. It is common to view these interactions through one of two lenses. Either light alters the properties of the atoms or atoms alter the properties of the light. There are several ways of examining the atoms and photons: classically, semiclassically, or quantum mechanically. The system under c ...
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... Experimental observation of the Bogoliubov transformation for a Bose-Einstein condensed gas The pioneering paper by Bogoliubov in 1947 was the starting point for a microscopic theory of superfluidity [13]. Bogoliubov found the non-perturbative solution for a weakly interacting gas of bosons. The mai ...
The Neutron Spin - The RM Santilli Foundation
The Neutron Spin - The RM Santilli Foundation

...  Antineutrino cannot deliver the 0.782 MeV needed for the neutron synthesis because the cross section of former with electron or proton is null.  Till date, proton and electron are the only experimentally discovered stable massive particles. Hence, emission of neutrino in neutron formation is ...
EGAS41
EGAS41

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Creating Strontium Rydberg Atoms
Creating Strontium Rydberg Atoms

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DOE Chemistry 1

... DOE Category A reactor training managers determined which materials should be included, and served as a primary reference in the initial development phase. Training guidelines from the commercial nuclear power industry, results of job and task analyses, and independent input from contractors and ope ...
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Atom

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is made up of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 pm (a ten-billionth of a meter, in the short scale). However, atoms do not have well defined boundaries, and there are different ways to define their size which give different but close values.Atoms are small enough that classical physics give noticeably incorrect results. Through the development of physics, atomic models have incorporated quantum principles to better explain and predict the behavior.Every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and typically a similar number of neutrons (none in hydrogen-1). Protons and neutrons are called nucleons. Over 99.94% of the atom's mass is in the nucleus. The protons have a positive electric charge, the electrons have a negative electric charge, and the neutrons have no electric charge. If the number of protons and electrons are equal, that atom is electrically neutral. If an atom has more or fewer electrons than protons, then it has an overall negative or positive charge, respectively, and it is called an ion.Electrons of an atom are attracted to the protons in an atomic nucleus by this electromagnetic force. The protons and neutrons in the nucleus are attracted to each other by a different force, the nuclear force, which is usually stronger than the electromagnetic force repelling the positively charged protons from one another. Under certain circumstances the repelling electromagnetic force becomes stronger than the nuclear force, and nucleons can be ejected from the nucleus, leaving behind a different element: nuclear decay resulting in nuclear transmutation.The number of protons in the nucleus defines to what chemical element the atom belongs: for example, all copper atoms contain 29 protons. The number of neutrons defines the isotope of the element. The number of electrons influences the magnetic properties of an atom. Atoms can attach to one or more other atoms by chemical bonds to form chemical compounds such as molecules. The ability of atoms to associate and dissociate is responsible for most of the physical changes observed in nature, and is the subject of the discipline of chemistry.Not all the matter of the universe is composed of atoms. Dark matter comprises more of the Universe than matter, and is composed not of atoms, but of particles of a currently unknown type.
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