TY - JOUR
T1 - Anomalous symmetry breaking in classical two-dimensional diffusion of coherent atoms
AU - Pugatch, Rami
AU - Bhattacharyya, Dipankar
AU - Amir, Ariel
AU - Sagi, Yoav
AU - Davidson, Nir
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.
UR - http://www.scopus.com/inward/record.url?scp=84897866757&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.89.033807
DO - 10.1103/PhysRevA.89.033807
M3 - Article
AN - SCOPUS:84897866757
SN - 1050-2947
VL - 89
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033807
ER -