TY - JOUR
AU - M. Martin
AU - M. Bishof
AU - M. Swallows
AU - X. Zhang
AU - Craig Benko
AU - J. von Stecher
AU - Alexey Gorshkov
AU - Ana Maria Rey
AU - Jun Ye
AB - Strongly interacting quantum many-body systems arise in many areas of physics, but their complexity generally precludes exact solutions to their dynamics. We explored a strongly interacting two-level system formed by the clock states in 87Sr as a laboratory for the study of quantum many-body effects. Our collective spin measurements reveal signatures of the development of many-body correlations during the dynamical evolution. We derived a many-body Hamiltonian that describes the experimental observation of atomic spin coherence decay, density-dependent frequency shifts, severely distorted lineshapes, and correlated spin noise. These investigations open the door to further explorations of quantum many-body effects and entanglement through use of highly coherent and precisely controlled optical lattice clocks.
BT - Science
DA - 2013-08
DO - 10.1126/science.1236929
IS - 6146
N2 - Strongly interacting quantum many-body systems arise in many areas of physics, but their complexity generally precludes exact solutions to their dynamics. We explored a strongly interacting two-level system formed by the clock states in 87Sr as a laboratory for the study of quantum many-body effects. Our collective spin measurements reveal signatures of the development of many-body correlations during the dynamical evolution. We derived a many-body Hamiltonian that describes the experimental observation of atomic spin coherence decay, density-dependent frequency shifts, severely distorted lineshapes, and correlated spin noise. These investigations open the door to further explorations of quantum many-body effects and entanglement through use of highly coherent and precisely controlled optical lattice clocks.
PY - 2013
SP - 632
EP - 636
T2 - Science
TI - A Quantum Many-Body Spin System in an Optical Lattice Clock
UR - http://www.sciencemag.org/cgi/doi/10.1126/science.1236929
VL - 341
SN - 0036-8075
ER -