Anomalous symmetry breaking in classical two-dimensional diffusion of coherent atoms

Rami Pugatch; Dipankar Bhattacharyya; Ariel Amir; Yoav Sagi; Nir Davidson

doi:10.1103/PhysRevA.89.033807

Anomalous symmetry breaking in classical two-dimensional diffusion of coherent atoms

Rami Pugatch, Dipankar Bhattacharyya, Ariel Amir, Yoav Sagi, Nir Davidson

Department of Physics of Complex Systems

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

The electromagnetically induced transparency (EIT) spectrum of atoms diffusing in and out of a narrow beam is measured and shown to manifest the two-dimensional δ-function anomaly in a classical setting. In the limit of small-area beams, the EIT line shape is independent of power, and equal to the renormalized local density of states of a free particle Hamiltonian. The measured spectra for different powers and beam sizes collapses to a single universal curve with a characteristic logarithmic Van Hove singularity close to resonance.

Original language	American English
Article number	033807
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	89
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.89.033807
State	Published - 6 Mar 2014

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1103/PhysRevA.89.033807

Cite this

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title = "Anomalous symmetry breaking in classical two-dimensional diffusion of coherent atoms",

abstract = "The electromagnetically induced transparency (EIT) spectrum of atoms diffusing in and out of a narrow beam is measured and shown to manifest the two-dimensional δ-function anomaly in a classical setting. In the limit of small-area beams, the EIT line shape is independent of power, and equal to the renormalized local density of states of a free particle Hamiltonian. The measured spectra for different powers and beam sizes collapses to a single universal curve with a characteristic logarithmic Van Hove singularity close to resonance.",

author = "Rami Pugatch and Dipankar Bhattacharyya and Ariel Amir and Yoav Sagi and Nir Davidson",

note = "ISF; Minerva foundationWe thank Ori Hirshberg for helpful discussions. This work was funded by the ISF and the Minerva foundation.",

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AU - Pugatch, Rami

AU - Bhattacharyya, Dipankar

AU - Amir, Ariel

AU - Sagi, Yoav

AU - Davidson, Nir

N1 - ISF; Minerva foundationWe thank Ori Hirshberg for helpful discussions. This work was funded by the ISF and the Minerva foundation.

PY - 2014/3/6

Y1 - 2014/3/6

N2 - The electromagnetically induced transparency (EIT) spectrum of atoms diffusing in and out of a narrow beam is measured and shown to manifest the two-dimensional δ-function anomaly in a classical setting. In the limit of small-area beams, the EIT line shape is independent of power, and equal to the renormalized local density of states of a free particle Hamiltonian. The measured spectra for different powers and beam sizes collapses to a single universal curve with a characteristic logarithmic Van Hove singularity close to resonance.

AB - The electromagnetically induced transparency (EIT) spectrum of atoms diffusing in and out of a narrow beam is measured and shown to manifest the two-dimensional δ-function anomaly in a classical setting. In the limit of small-area beams, the EIT line shape is independent of power, and equal to the renormalized local density of states of a free particle Hamiltonian. The measured spectra for different powers and beam sizes collapses to a single universal curve with a characteristic logarithmic Van Hove singularity close to resonance.

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DO - 10.1103/PhysRevA.89.033807

M3 - Article

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JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

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ER -

Anomalous symmetry breaking in classical two-dimensional diffusion of coherent atoms

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