Dynamics of resonant energy transfer in one-dimensional chain of Rydberg atoms

We study resonant energy transfer in a one-dimensional chain of two to five atoms by analyzing time-dependent probabilities as function of their interatomic distances. The dynamics of the system are first investigated by including the nearest-neighbour interactions and then accounting for all next-n...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2018-09, Vol.72 (9), p.1-8, Article 150
Main Authors: Kaur, Maninder, Kaur, Paramjit, Sahoo, Bijaya K., Arora, Bindiya
Format: Article
Language:English
Subjects:
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Chains
Energy transfer
Molecular
Optical and Plasma Physics
Periodic variations
Physical Chemistry
Physics
Physics and Astronomy
Quantum Information Technology
Quantum Physics
Regular Article
Rydberg states
Spectroscopy/Spectrometry
Spintronics
Time dependence
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Summary:We study resonant energy transfer in a one-dimensional chain of two to five atoms by analyzing time-dependent probabilities as function of their interatomic distances. The dynamics of the system are first investigated by including the nearest-neighbour interactions and then accounting for all next-neighbour interactions. We find that inclusion of nearest-neighbour interactions in the Hamiltonian for three atoms chain exhibits periodicity during the energy transfer dynamics; however, this behavior displays aperiodicity with the all-neighbour interactions. It shows for the equidistant chains of four and five atoms the peaks are always irregular but regular peaks are retrieved when the inner atoms are placed closer than the atoms at both the ends. In this arrangement, the energy transfer swings between the atoms at both ends with very low probability of finding an atom at the center. This phenomenon resembles with quantum notion of Newton’s cradle. We also find out the maximum distance up to which energy could be transferred within the typical lifetimes of the Rydberg states. Graphical abstract
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2018-90205-9