Review of cold Rydberg atoms and their applications

Lim, Jiyoun; Lee, Han-gyeol; Ahn, Jaewook

doi:10.3938/jkps.63.867

Cited by 42 publications

(28 citation statements)

References 74 publications

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“…A precise scheme design goes however behind the scope of this work, and may be subject of future investigations. Incidentally, we note that previous theoretical studies of dipolar and Rydberg atoms on a ring [66][67][68] have focused on other aspects of their rich physics.…”

mentioning

confidence: 97%

Tuning the Drude weight of Dirac-Weyl fermions in one-dimensional ring traps

et al. 2017

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We study the response to an applied flux of an interacting system of Dirac-Weyl fermions confined in a one-dimensional (1D) ring. Combining analytical calculations with density-matrix renormalization group results, we show that tuning of interactions leads to a unique many-body system that displays either a suppression or an enhancement of the Drude weight-the zero-frequency peak in the ac conductivity-with respect to the non-interacting value. An asymmetry in the interaction strength between same-and different-pseudospin Dirac-Weyl fermions leads to Drude weight enhancement. Viceversa, symmetric interactions lead to Drude weight suppression. Our predictions can be tested in mixtures of ultracold fermions in 1D ring traps.

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confidence: 97%

Tuning the Drude weight of Dirac-Weyl fermions in one-dimensional ring traps

et al. 2017

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“…From Eq. (22) we can see that by decreasing the magnetic field B AC , it decreases the degeneracy D of the system. As a consequence, fewer atoms can be accommodated on each LAC level and the atomic population of the highest (p + 1)th energy level will range from completely full to entirely empty.…”

Section: Quantum Oscillations For Neutral Particles Subject To An Elementioning

confidence: 79%

de Haas-van Alphen oscillations for neutral atoms in electric fields

Farias

Furtado

2016

Eur. Phys. J. Plus

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The de Haas van Alphen (dHvA) effect is well known as an oscillatory variation of the magnetization of conductors as a function of the inverse magnetic field and the frequency is proportional to the area of the Fermi surface. Here, we show that an analog effect can occur for neutral atoms with a nonvanishing magnetic moment interacting with an electric field. Under an appropriate field-dipole configuration, the neutral atoms subject to a synthetic magnetic field arrange themselves in Landau levels. Using the Landau-Aharonov-Casher (LAC) theory, we obtain the energy eigenfunctions and eigenvalues as well as the degeneracy of the system. In a strong effective magnetic field regime we present the quantum oscillations in the energy and effective magnetization of a two-dimensional (2D) atomic gas. From the dHvA period we determine the area of the Fermi circle of the atomic cloud.

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“…It can be seen that, in the * 4 28 n < < range of effective quantum numbers, the data of the experiment and the stochastic theory (solid curves) agree with each other (although measurements Associative ionization rate constants for Na*(nl) + Na(3s) collisions in a single beam [53] (frames (a,b)) and in two orthogonal crossed beams [66] (frames (c,d)), T = 600 K. Figure 12 shows the results of more recent experiments [53,66] on AI rate constants measurements, the authors of which took into account the effects of free electrons escaping due to atoms photoionization by black body radiation.…”

Section: Assotiative Ionization Rate Constantsmentioning

confidence: 98%

“…The main feature of Rydberg particles is their extremely big size~n 2 (where n is the principal quantum number), which results in huge dipole moments. This opens up unique opportunities for both the controlled and addressed management of quantum states by external electromagnetic fields [4], and for the creation of long-lived coherent (entangled) states in cold Rydberg media due to the long range dipole-dipole interaction between the medium particles [5,6]. Therefore, the cold Rydberg atoms are considered to be promising objects for solving the problems of quantum information.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Instability of Rydberg Atomic Complexes

Dimitrijević

Srećković

Zalam

et al. 2019

Atoms

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Atoms and molecules in highly excited (Rydberg) states have a number of unique characteristics due to the strong dependence of their properties on the values of principal quantum numbers. The paper discusses the results of an investigation of collisional Rydberg complexes specific features, resulting in the development of dynamic chaos and the accompanying diffusion autoionization processes. It is shown (experiment and theory) that, in subthermal low energies, the global chaotic regime that evolved in quasimolecular systems leads to significant changes in the Rydberg gases radiation/ionization kinetics. The effect of Förster resonance on the width of the fluorescence spectra and stochastic ionization processes in Rydberg systems is also discussed.

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Review of cold Rydberg atoms and their applications

Cited by 42 publications

References 74 publications

Tuning the Drude weight of Dirac-Weyl fermions in one-dimensional ring traps

Tuning the Drude weight of Dirac-Weyl fermions in one-dimensional ring traps

de Haas-van Alphen oscillations for neutral atoms in electric fields

Dynamic Instability of Rydberg Atomic Complexes

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