TY - JOUR
T1 - Measurement backaction on the quantum spin-mixing dynamics of a spin-1 Bose-Einstein condensate
AU - Zhang, Keye
AU - Zhou, Lu
AU - Ling, Hong Y.
AU - Pu, Han
AU - Zhang, Weiping
PY - 2011/6/20
Y1 - 2011/6/20
N2 - We consider a small F=1 spinor condensate inside an optical cavity driven by an optical probe field, and subject the output of the probe to a homodyne detection, with the goal of investigating the effect of measurement backaction on the spin dynamics of the condensate. Using the stochastic master equation approach, we show that the effect of backaction is sensitive to not only the measurement strength but also the quantum fluctuation of the spinor condensate. The same method is also used to estimate the atom numbers below which the effect of backaction becomes so prominent that extracting spin dynamics from this cavity-based detection scheme is no longer practical.
AB - We consider a small F=1 spinor condensate inside an optical cavity driven by an optical probe field, and subject the output of the probe to a homodyne detection, with the goal of investigating the effect of measurement backaction on the spin dynamics of the condensate. Using the stochastic master equation approach, we show that the effect of backaction is sensitive to not only the measurement strength but also the quantum fluctuation of the spinor condensate. The same method is also used to estimate the atom numbers below which the effect of backaction becomes so prominent that extracting spin dynamics from this cavity-based detection scheme is no longer practical.
UR - https://www.scopus.com/pages/publications/79961038333
UR - https://www.scopus.com/pages/publications/79961038333#tab=citedBy
U2 - 10.1103/PhysRevA.83.063624
DO - 10.1103/PhysRevA.83.063624
M3 - Article
AN - SCOPUS:79961038333
SN - 1050-2947
VL - 83
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6
M1 - 063624
ER -