Optical lattice standing wave
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 … WebOct 15, 2024 · An optical lattice (OL), an artificial spatial periodic structure, is a clean and highly controllable system with many important applications in atomic physics, optics and quantum physics. ... commonly by introducing a frequency difference or time-varying phase difference between the two lasers forming the standing-wave potential. Due to the ...
Optical lattice standing wave
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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, … 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...
WebOptical pumping is most likely to occur at the antinode of the σ− standing wave, transferring the atom from the top of a hill of the potential U12, to the bottom of a well in the potential U−12. 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.
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WebJun 4, 2008 · Nature - An optical lattice, created by interference between two coherent laser beams travelling in opposite directions, is a standing wave with a periodic pattern of dark … green dot temporary card cash backWebOptical 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 … flt jobs wrexhamThere are two important parameters of an optical lattice: the potential well depth and the periodicity. The potential experienced by the atoms is related to the intensity of the laser used to generate the optical lattice. The potential depth of the optical lattice can be tuned in real time by changing the power of the laser, which is normally controlled by an acousto-optic modulator (AOM). The AOM i… flt jobs wirralWebOptical Lattices. Last day we talked about the presence of "bandstructure" in solids. Namely the eigenstates for electrons in crystals "bunch up." ... ^2.$ Thus a standing wave of light will produce a potential. Lets specialize to the potential you get when you aim two lasers in opposite dicrections: \begin{equation} E = E_0{\rm Real}\left[e^{i ... flt jobs wiganWebWe 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 ... green dot temporary card onlineWebAug 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 … flt job wellingboroughgreendot temporary card activation number