Unit 4: Atoms and Nuclei
... (1) Bohr proposed that certain “magical” circular orbits existed, called “stationary states”, which did not radiate, and that electrons could only exist in these states, with radiation occurring when they made the transition from one to the other. (2) He also postulated that the frequency of the ra ...
... (1) Bohr proposed that certain “magical” circular orbits existed, called “stationary states”, which did not radiate, and that electrons could only exist in these states, with radiation occurring when they made the transition from one to the other. (2) He also postulated that the frequency of the ra ...
CHAPTER 22 Astrophysical Gases Most of the baryonic matter in the
... state. However, at such high temperatures, one typically has that most of the hydrogen will be ionized (unless the electron density is unrealistically high). This somewhat unintuitive result arises from the fact that there are many more possible states available for a free electron than for a bound ...
... state. However, at such high temperatures, one typically has that most of the hydrogen will be ionized (unless the electron density is unrealistically high). This somewhat unintuitive result arises from the fact that there are many more possible states available for a free electron than for a bound ...
Phys. Rev. Lett. 93, 073002
... can absorb a single photon from either laser beam and be excited to an intermediate molecular state, from where it can decay via spontaneous emission to other bound or unbound states, leading to trap losses. In order to ameliorate these problems, we choose a rather large detuning j#j, which decrease ...
... can absorb a single photon from either laser beam and be excited to an intermediate molecular state, from where it can decay via spontaneous emission to other bound or unbound states, leading to trap losses. In order to ameliorate these problems, we choose a rather large detuning j#j, which decrease ...
Comment on ""Electromagnetic Wave Dynamics in Matter- Wave Superradiant Scattering" Please share
... The Letter by Deng et al. [1] presents an analytic theoretical description of matter-wave superradiance [2] which claims to go beyond previous theoretical frameworks. I show here that the theory presented in this Letter is not a description of superradiance per se, but rather an elegant perturbative ...
... The Letter by Deng et al. [1] presents an analytic theoretical description of matter-wave superradiance [2] which claims to go beyond previous theoretical frameworks. I show here that the theory presented in this Letter is not a description of superradiance per se, but rather an elegant perturbative ...
The Photoelectric Effect
... Do You Know How a Solar Cell Works? Light produces electricity, right? ...
... Do You Know How a Solar Cell Works? Light produces electricity, right? ...
Physics 200 Class #1 Outline
... orbits. But why would they have only those particular orbits that represented the special set of frequencies observed in the spectrum of hydrogen? Even more of a problem was how they could stay in orbit. Any orbiting charged particle must radiate electrical energy due to the acceleration it undergoe ...
... orbits. But why would they have only those particular orbits that represented the special set of frequencies observed in the spectrum of hydrogen? Even more of a problem was how they could stay in orbit. Any orbiting charged particle must radiate electrical energy due to the acceleration it undergoe ...
Final Exam - Department of Physics and Astronomy : University of
... The same electron strikes perpendicular to the surface of a solid (see figure) interacting only with the surface layer of atoms. If the smallest angle at which a diffraction maximum occurs is at θm, what is the separation d between the atoms on the surface? θm ...
... The same electron strikes perpendicular to the surface of a solid (see figure) interacting only with the surface layer of atoms. If the smallest angle at which a diffraction maximum occurs is at θm, what is the separation d between the atoms on the surface? θm ...
There can be only one
... magine a gas of atoms irradiated by a laser at resonance with an electronic transition. Naively, one would expect that each atom undergoes oscillations between the ground state and the excited state, driven by the coherent light field. This simple picture, however, breaks down when the excited atoms ...
... magine a gas of atoms irradiated by a laser at resonance with an electronic transition. Naively, one would expect that each atom undergoes oscillations between the ground state and the excited state, driven by the coherent light field. This simple picture, however, breaks down when the excited atoms ...
