Optical lattice standing wave

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August undefined, 2024

WebApr 1, 2024 · Figure 1. Superresolution imaging of ultracold atoms based on optical pumping. (a) Given an intense standing wave of OP light, the excitation probability (red … Among their many uses, laser beams can trap matter such as atoms and molecules. Two or more intersecting laser beams can combine and “interfere” to form a standing wave, an array of peaks and valleys of light intensity. Depending on the number and arrangement of the laser beams, the standing wave can extend in … See more Soviet physicist Vladilen Letokhov introduced the idea(link is external)of optical lattices more than a half century ago, in the 1960s. Researchers began to create such light traps … See more Clocks using atoms trapped in an optical lattice, rather than the historical approach of using a “cloud” of unconfined neutral atoms, dramatically reduce the influence of atomic motion on the clock’s ticking. Hidetoshi Katori of … See more Parallel with the development of lattice clocks, NIST researchers since the 2000s have explored the use of atoms in optical lattices to perform … See more Ana Maria Rey, a NIST physicist at JILA, has contributed important theoretical work, including models that have helped to improve clock performance by identifying and explaining quantum interactions between multiple … See more

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WebJan 1, 2012 · Optical Lattices Periodic potentials based on dipole forces can be formed via optical interference by overlapping two laser beams. For the case of two counterpropagating light fields, an optical standing wave with period alat = λ /2 is formed, in which the atoms can be trapped. WebNov 24, 2014 · Recently, optical trapping of a single ion has been demonstrated, first in a single-beam dipole trap, superimposed by a static electric potential 34, 35. Subsequently, all-optical trapping of... china peak snowboard rentals

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WebMar 18, 2008 · We report an experimental method to create optical lattices with real-time control of their periodicity. We demonstrate a continuous change of the lattice periodicity … WebMar 25, 2024 · After it there is an optical lens with a focal length f = 300 mm. The standing wave is formed by the back reflection of the laser beam without polarization rotation from … http://www-sp.phy.cam.ac.uk/~wa14/camonly/statistical/Lecture12.pdf china pearl blakeslee menu

[0711.1772] Bloch oscillation of a Bose-Einstein condensate in a ...

Strongly correlated systems in atomic and …

WebAug 25, 2010 · Abstract. We investigate a setup where a cloud of atoms is trapped in an optical lattice potential of a standing-wave laser field which is created by retroreflection on a micromembrane. The membrane vibrations itself realize a quantum mechanical degree of freedom. We show that the center-of-mass mode of atoms can be coupled to the … http://cmt.harvard.edu/demler/TEACHING/Physics284/chapter5.pdf grambling state university lab high schoolhttp://ultracold.uchicago.edu/sites/default/files/thesis/lcha_thesis.pdf china pearl blakeslee

"WebApr 3, 2024 · The lattice wavelength is λ = 800 nm. The duration time of applying 2D optical lattice pulse on BEC is 4 μs and TOF=7 ms. As expected, the atomic density distributions of the time-of-flight absorption image exhibit discrete momentum components. " - Optical lattice standing wave

Optical lattice standing wave

Strongly correlated systems in atomic and …

Webstanding wave has the form V lat (x) = V 0 sin2(k L x), where k L = 2π/λ L is the wave vector of the laser light used to form the optical standing wave and V 0 represents the lattice … Web5.1 Noninteracting particles in optical lattices The simplest possible periodic optical potential is formed by overlapping two counter-propagating beams. Electric eld in the …

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http://info.phys.unm.edu/~ideutsch/Publications/Optical_Lattice_Review.pdf Webtable of contents list of figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii list of tables ...

WebOptical lattices have developed into successful model systems for effects known or predicted in solid state physics 5 .Bloch oscillations, in which an atom subject to a force performs an oscillatory rather than a uniformly accelerated motion, are one of the most striking quantum transport property arising from the periodic potential 6 .In other works, … WebWe describe a method to generate a synthetic gauge potential for ultracold atoms held in an optical lattice. Our approach uses a time-periodic driving potential based on quickly alternating two Hamiltonians to engineer the appropriate Aharonov-Bohm phases, and permits the simulation of a uniform tunable magnetic field. We explicitly demonstrate that …

WebOptical lattice potentials.a, The standing-wave interference pattern creates a periodic potential in which the atoms move by tunnel coupling between the individual wells. b, The … WebAn optical lattice is a periodic optical structure created by standing wave laser beams that give rise to the optical potential felt by the atoms in which cooled atoms are trapped (see …

WebWe show that even when the optical standing wave is slowly turned on and the condensate behaves adiabatically during this turn-on, once the tunneling- time between wells in the optical lattice becomes longer than the nonlinear time-scale, adiabaticity breaks down and a significant spatially varying phase develops across the condensate wave ...

WebFeb 21, 2024 · With the aid of spatial atomic density and standing wave modulation, both the optical PT symmetry and PT antisymmetry are achieved in one-dimensional and two-dimensional optical lattices, where the PT antisymmetry with the gain is presented. china peak snowfallWebOptical lattices are periodic arrays of microtraps for cold atoms generated by standing wave laser fields. The periodic structure of the lattice gives rise to a series of Bloch bands for the atomic center-of-mass motion. Atoms loaded in an optical lattice from a BEC will only occupy the lowest Bloch band due to the low temperatures. The physics of these atoms … china peak ski resort reviewsWebJul 5, 2013 · The wavelength of all three lattice beams is basically the same, only the V x,2 lattice is offset by a few hundred MHz to ensure that the interference between the … grambling state university imagesWebStrong optical absorption is observed (Photons annihilated, phonons created). w finite value as q 0 Optical modes arise from folding back the dispersion curve as the lattice periodicity is doubled (halved in q-space). Zone boundary: All modes are standing waves at the zone boundary, ¶w/¶q = 0: a necessary consequence of the lattice periodicity. china pearl cary ncWebFeb 20, 2024 · The physical mechanism underlying most optical lattices is the ac-Stark effect, in which laser light causes shifts in an atom’s ground-state energy. In the standing-wave pattern created from two or more laser … china peak web camerasWebDownload scientific diagram Optical lattice potentials.a, The standing-wave interference pattern creates a periodic potential in which the atoms move by tunnel coupling between the individual ... china-pearlWebStanding-wave laser fields produce a periodic potential for atoms, which can trap cold atoms in an ordered crystallike structure. 1 In most optical lattices studied so far, the light is tuned close to a resonance, so that spontaneous emission limits the atomic coherence time. china pearl blakeslee pa menu