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Far-infrared Rydberg-Rydberg transitions in a magnetic field: Deexcitation of antihydrogen atoms
Far-infrared Rydberg-Rydberg transitions in a magnetic field: Deexcitation of antihydrogen atoms

Laser intensity induced transparency in atom
Laser intensity induced transparency in atom

... 3 Cesium atom-molecule system case In order to demonstrate the laser intensity induced transparency, a specific frequency was chosen, at which the PA laser intensity was set to 300 W/cm2, such that the resonant frequency is not influenced by the variation of PA laser intensity. The binding energy of ...
COLD ATOMS AND CREATION OF NEW STATES OF MATTER: BOSE-
COLD ATOMS AND CREATION OF NEW STATES OF MATTER: BOSE-

Observation of a resonant four-body interaction in cold cesium
Observation of a resonant four-body interaction in cold cesium

Radio-frequency-induced optical gain in Pr :Y SiO
Radio-frequency-induced optical gain in Pr :Y SiO

From coherent to quantum atom optics
From coherent to quantum atom optics

... Repeat many times (accumulate records) at same temperature Pulsed experiment: 3 dimensions are equivalent ≠ Shimizu experiment ...
Measurement of the separation between atoms beyond diffraction limit
Measurement of the separation between atoms beyond diffraction limit

Laser Cutting
Laser Cutting

... laser was non-other than Albert Einstein himself back in the 1920s and 1930s. At that time light was considered to be what is called spontaneous light. This spontaneous light is emitted by hot objects or by individual atoms in an electrical discharge. Each particle of this light, referred to as a ph ...
Manipulating Atoms with Photons
Manipulating Atoms with Photons

... A first interesting feature of these optical methods is that they provide a very efficient scheme for polarizing atoms at room temperature and in a low magnetic field. Secondly, they have a very high sensitivity. A single RF transition between the 2 ground state sublevels is detected by the subseque ...
EXCITATION OF HELIUM ATOMS IN He
EXCITATION OF HELIUM ATOMS IN He

Optically polarized atoms_Atomic_Transitions
Optically polarized atoms_Atomic_Transitions

... This horn antenna, now displayed in front of the Jansky Lab at NRAO in Green Bank, WV, was used by Harold Ewen and Edward Purcell, then at the Lyman Laboratory of Harvard University, in the first detection of the 21 cm emission from neutral hydrogen in the Milky Way. The emission was first detected ...
3. Lattice Dynamics 3.1 1D Chain of Identical Atoms We will study
3. Lattice Dynamics 3.1 1D Chain of Identical Atoms We will study

... dimensions, which are not necessarily the same. Each atom has 3 degrees of (vibrational) freedom, so the number of modes is equal to three times the number of atoms in the basis. Three of these modes are acoustic; one longitudinal, two ...
Optically polarized atoms
Optically polarized atoms

... This horn antenna, now displayed in front of the Jansky Lab at NRAO in Green Bank, WV, was used by Harold Ewen and Edward Purcell, then at the Lyman Laboratory of Harvard University, in the first detection of the 21 cm emission from neutral hydrogen in the Milky Way. The emission was first detected ...
Quantum Information Processing with Trapped Neutral Atoms
Quantum Information Processing with Trapped Neutral Atoms

... atoms. Brennen et al. proposed to use the 1/r 3 electric dipole-dipole interactions created when an off-resonant laser field mixes the ground-state manifold with excited electronic states. These excited states will spontaneously emit photons and cause errors, but the rate saturates to that of the tw ...
Optically polarized atoms_ch_7_Atomic_Transitions
Optically polarized atoms_ch_7_Atomic_Transitions

Hyperradiance-a new paradigm in 60 years of superradiance
Hyperradiance-a new paradigm in 60 years of superradiance

Stimulated Raman adiabatic passage as a route to achieving optical... Maxim Sukharev and Svetlana A. Malinovskaya
Stimulated Raman adiabatic passage as a route to achieving optical... Maxim Sukharev and Svetlana A. Malinovskaya

Partial fulfillment of DiVincenzo criteria using manipulation of Rb
Partial fulfillment of DiVincenzo criteria using manipulation of Rb

Design study of a Magneto-Optical Trap for laser cooling of rubidium
Design study of a Magneto-Optical Trap for laser cooling of rubidium

laser spectroscopy
laser spectroscopy

Electromagnetically induced transparency inside the laser cavity: Switch between first-order
Electromagnetically induced transparency inside the laser cavity: Switch between first-order

... used to study the time-dependent behavior 关15兴. Small amplitude harmonically modulated intensity and pulses corresponding to the passive Q switching are found to be the stable solutions. Roy gave the photon distribution in this system and showed the similarity to the dye laser 关16兴. As another conce ...
Wave Nature of Light
Wave Nature of Light

Ultra cold atoms and Bose-Einstein condensation for quantum
Ultra cold atoms and Bose-Einstein condensation for quantum

Quantum Phases and Topological States in Optical Lattices
Quantum Phases and Topological States in Optical Lattices

paper - Center for Ultracold Atoms
paper - Center for Ultracold Atoms

... boson). Ordinary attractive or repulsive interactions between atoms are negligible; therefore, the contrasting bunching and antibunching behaviour that we observe can be fully attributed to the different quantum statistics of each atomic species. Our results show how atom–atom correlation measuremen ...
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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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