Results 11 to 20 of about 1,307,918 (342)
Correlations in atomic systems: Diagnosing coherent superpositions [PDF]
Physical Review Letters, 2004 While investigating quantum correlations in atomic systems, we note that single measurements contain information about these correlations. Using a simple model of measurement -- analogous to the one used in quantum optics -- we show how to extract higher
C. Iaconis +7 more
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Coherent single-atom superradiance [PDF]
Science, 2018 Building up to superradiance, one by one Superradiance is a quantum phenomenon that occurs when emitters are sufficiently close to change spontaneous emission. Controlling the position and state of emitters within an atomic ensemble, however, is technically challenging. Kim et al.
Junki Kim +3 more
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Coherent trapping of atomic populations [PDF]
Optics Letters, 1978 It is often desirable in laser spectroscopy and isotope separation to extract as much as possible of an atomic or molecular population that is distributed among a number of ground-state sublevels and low-lying metastable levels. We describe a form of coherent trapping that occurs when multiple resonant laser beams are used to couple the various ground ...
H R, Gray, R M, Whitley, C R, Stroud
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Coherent Backscattering of Ultracold Atoms [PDF]
Physical Review Letters, 2012 We report on the direct observation of coherent backscattering (CBS) of ultracold atoms, in a quasi-two-dimensional configuration. Launching atoms with a well-defined momentum in a laser speckle disordered potential, we follow the progressive build up of the momentum scattering pattern, consisting of a ring associated with multiple elastic scattering ...
Jendrzejewski, Fred +7 more
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Coherent control of atomic tunnelling [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2008 6 pages revtex, 4 figures, extended version including numerical results taking into account higher vibrationnal ...
Martin, John, Braun, Daniel
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Extraction of autonomous quantum coherences [PDF]
Quantum, 2022 Quantum coherence is an essential resource to gain advantage over classical physics and technology. Recently, it has been proposed that a low-temperature environment can induce quantum coherence of a spin without an external coherent pump.
Artur Slobodeniuk +2 more
doaj +1 more source
Enhancement of field generation via maximal atomic coherence prepared by fast adiabatic passage in Rb vapor [PDF]
, 2003 We have experimentally demonstrated the enhancement of coherent Raman scattering in Rb atomic vapor by exciting atomic coherence with fractional stimulated Raman adiabatic passage.
A. B. Matsko +15 more
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Quantum fuel with multilevel atomic coherence for ultrahigh specific work in a photonic Carnot engine. [PDF]
Physical Review E, 2015 We investigate scaling of work and efficiency of a photonic Carnot engine with a number of quantum coherent resources. Specifically, we consider a generalization of the "phaseonium fuel" for the photonic Carnot engine, which was first introduced as a ...
Deniz Türkpençe +1 more
semanticscholar +1 more source
European Journal of Physics, 1993 There is nothing new in this paper. It contains a pedagogical discussion of a very interesting interference effect involving the radiation pattern from a single atom which is confined by a mutli-well potential. The intereference phenomenon is a quantum effect with a pattern strength that is proportional to the tunnelling probability.
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Atoms, 2022 We performed a fully differential experimental and theoretical study on ionization of He in intermediate-energy collisions with protons for a small projectile coherence length. Data were taken for an ejected electron energy corresponding to a speed close
Sujan Bastola +9 more
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