Non-exponential decay of a collective excitation in an atomic ensemble
coupled to a one-dimensional waveguide
- URL: http://arxiv.org/abs/2006.14977v2
- Date: Sun, 3 Jul 2022 15:05:26 GMT
- Title: Non-exponential decay of a collective excitation in an atomic ensemble
coupled to a one-dimensional waveguide
- Authors: Jan Kumlin, Kevin Kleinbeck, Nina Stiesdal, Hannes Busche, Sebastian
Hofferberth, and Hans Peter B\"uchler
- Abstract summary: We study the dynamics of a single excitation coherently shared amongst an ensemble of atoms and coupled to a one-dimensional wave guide.
The coupling between the matter and the light field gives rise to collective phenomena such as superradiant states.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We study the dynamics of a single excitation coherently shared amongst an
ensemble of atoms and coupled to a one-dimensional wave guide. The coupling
between the matter and the light field gives rise to collective phenomena such
as superradiant states with an enhanced initial decay rate, but also to the
coherent exchange of the excitation between the atoms. We find that the
competition between the two phenomena provides a characteristic dynamics for
the decay of the excitations, and remarkably exhibits an algebraic behavior,
instead of the expected standard exponential one, for a large number of atoms.
The analysis is first performed for a chiral waveguide, where the problem can
be solved analytically, and then is extended to the bidirectional waveguide.
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