We present precision neutron scattering measurements of the Bose-Einstein condensate (BEC) fraction n_0(T) and the atomic momentum distribution n*(k) of liquid ~4He as a function of temperature at pressure p = 24 bars. Both the temperature dependence of n_0(T) and of the width of n~*...
The change of a substance from a solid directly to a gas is referred to as ___. Phases of Matter: Matter can be classified into three primary phases: solid, liquid, and gas. Through advanced science, more phases such as plasmas and Bose-Einstein condensates have bee...
Matter: The matter is anything that is occupying some space in the universe and some mass is associated with them. There are five states of matter, solid-state of matter, the liquid state of matter, gas state of matter,...
A. liquid B. plasma C. Bose - Einstein condensate D. gas 相关知识点: 试题来源: 解析 D。解析:固体有固定的形状和体积,气体(gas)没有固定的形状和体积,“solid(固体)”和“gas(气体)”是反义词关系。在这一科学语境下,液体有固定的体积,等离子体和玻色 - 爱因斯坦凝聚态不符合这里与固体相对的概念,...
ABose Einstein Condensate BPlasma CBoth 1 and 2 DNone of the aboveSubmit The three states of matter are solid, liquid and gas .Which of the following statement is/are about them? AGases and liquid have viscosity as a common property BThe molecules in all the three states posses random ...
solid, one of the three commonly recognized states in which matter occurs, i.e., that state, as distinguished from liquid and gas, in which a substance has both a definite shape and a definite volume. Solids resemble liquids in having a definite volume, but differ from both liquids and ...
Temperature-dependence of phonons, solid state properties and liquid structure of noble metals: A comparison of pair-potentialsTemperature-dependence of phonons, solid state properties and liquid structure of noble metals: A comparison of pair-potentialsMetalsLattice...
Gas( ) Plasma ( ) Soft Condensed Matter ( ) Liquid ( ) Solid ( ) Amorphous Solid ( ) Quasi-crystal ( ) Crystalline Solid ( ) Single Crystal ( ) Polycrystalline ( ) BB y BBBB yyyy yy JJJJ iiii jjjj uuu nnnn stallin J i j ) @ D U T Z h a o @ D @@@ DDD @@ DD ZZZ...
Zone-plate focusing of Bose-Einstein condensates for atom optics and erasable high-speed lithography of quantum electronic components We show that Fresnel zone plates (ZPs), fabricated in a solid surface, can sharply focus atomic Bose-Einstein condensates that quantum reflect from the sur... TE Ju...
The properties of this wave function may give an insight into the physical mechanism which gives rise to the liquid-solid transition taking place in samples of He atoms at T = 0K. In the first part we show that, whenever the number of particles is finite, the ground state is ...