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Prospects for atom interferometry
Prospects for atom interferometry

Single-particle-sensitive imaging of freely propagating ultracold atoms
Single-particle-sensitive imaging of freely propagating ultracold atoms

Selection rules for nonradiative carrier relaxation processes in
Selection rules for nonradiative carrier relaxation processes in

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Homework 1

Chapter 5 Experimental Apparatus II
Chapter 5 Experimental Apparatus II

... of photons that have already been spontaneously scattered by MOT atoms, or “radiation trapping,” leads to temperature and density limitations in free-space MOTs [Sesko91; Ellinger94]. These rescattering events are particularly problematic in that they may be much more likely to be absorbed than regu ...
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the PDF - JILA Science - University of Colorado Boulder

An N-atom Collective State Atomic Interferometer with Ultra
An N-atom Collective State Atomic Interferometer with Ultra

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Interacting Cold Rydberg Atoms: a Toy Many-Body
Interacting Cold Rydberg Atoms: a Toy Many-Body

... Techniques for laser cooling and trapping of neutral atoms by laser light were developed in the 80’s and 90’s. It was in particular demonstrated that atomic samples could be cooled down to temperatures below 100 µK starting from vapors at room temperature. The basic mechanism that makes laser coolin ...
Addressing of individual atoms in an optical dipole trap
Addressing of individual atoms in an optical dipole trap

... Josephson junctions [Mak01] and cavity quantum electrodynamics. Each of these approaches has its own advantages and disadvantages. Our approach is to use neutral atoms as carriers of quantum information, which is encoded in their long-living hyperfine ground states. The main advantage of neutral ato ...
Ionization of Rydberg atoms by standing
Ionization of Rydberg atoms by standing

... experiment. There are no other free parameters in the simulations. For a lattice with perfect contrast and for atoms frozen in place at either intensity maxima or minima, the ratio of tPI for initial condition CMIN to that for CMAX would be infinity. On the basis of the actual contrast between intens ...
LEP 2.6.07 Helium Neon Laser
LEP 2.6.07 Helium Neon Laser

Cooling and Trapping Neutral Atoms
Cooling and Trapping Neutral Atoms

ABSTRACT PHOTON PAIR PRODUCTION FROM A HOT ATOMIC ENSEMBLE IN THE DIAMOND CONFIGURATION
ABSTRACT PHOTON PAIR PRODUCTION FROM A HOT ATOMIC ENSEMBLE IN THE DIAMOND CONFIGURATION

Laser Safety Powerpoint 2015
Laser Safety Powerpoint 2015

... Monochromatic - all light produced by the laser is of one wavelength or color. Exceptions included multiline gas lasers and new white-light lasers. ex. Nd:YAG (532,1064nm) ...
Optical pumping of a lithium atomic beam for atom interferometry
Optical pumping of a lithium atomic beam for atom interferometry

... I0 = P/(πw02 ) and, in the calculations, we use the same power P = 5 mW for the two laser beams. Initially, the atomic population is equally distributed among the 8 ground state sublevels. Figure 2 plot the populations of the sublevels of the ground state as a function of time t. In this ideal case, ...
Atomic Line Spectra: the Bohr model Line Spectra of Excited Atoms
Atomic Line Spectra: the Bohr model Line Spectra of Excited Atoms

... Bohr received the Nobel Prize in 1922 for his theory. However, there are problems — • theory is successful only for H. • quantum idea artificially introduced. • So, we go on to QUANTUM or WAVE MECHANICS to understand the atom ...
Atomic Line Spectra: the Bohr model Line Spectra of Excited Atoms
Atomic Line Spectra: the Bohr model Line Spectra of Excited Atoms

... Atomic Spectra Spectra and and Bohr Bohr If e-’s are in quantized energy states, then ∆E between states can have only certain values. This explains sharp line spectra. ...
Manipulation of two-level quantum systems with narrow transition
Manipulation of two-level quantum systems with narrow transition

Bose-Glass Phases of Ultracold Atoms due to Cavity Backaction Hessam Habibian,
Bose-Glass Phases of Ultracold Atoms due to Cavity Backaction Hessam Habibian,

RCLED - Crosslight Software
RCLED - Crosslight Software

... True 3D simulation of band structure physics including MQW strain effects. Current flow and self-heating may be included self-consistently in 3D. ...
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Slide 1

... Niels Bohr was the first to offer an explanation for line spectra Bohr Model of the Hydrogen Atom • Only orbits of defined energy and radii are permitted in the hydrogen atom • An electron in a permitted orbit has a specific energy and will not radiate energy and will not spiral into the nucleus • E ...
Absorption-induced trapping in an anisotropic
Absorption-induced trapping in an anisotropic

Vacuum fluctuations and moving atoms/detectors: From Casimir
Vacuum fluctuations and moving atoms/detectors: From Casimir

Control of the frequency comb from a modelocked
Control of the frequency comb from a modelocked

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Population inversion

In science, specifically statistical mechanics, a population inversion occurs while a system (such as a group of atoms or molecules) exists in a state with more members in an excited state than in lower energy states. It is called an ""inversion"" because in many familiar and commonly encountered physical systems, this is not possible. The concept is of fundamental importance in laser science because the production of a population inversion is a necessary step in the workings of a standard laser.
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