Abstract
We provide a theoretical treatment of the quantum backaction of Larmor frequency measurements on a spinor Bose-Einstein condensate by an off-resonant light field. Two main results are presented; the first is a "quantum jump" operator description that reflects the abrupt change in the spin state of the atoms when a single photon is counted at a photodiode. The second is the derivation of a conditional stochastic master equation relating the evolution of the condensate density matrix to the measurement record. We provide a few examples of the application of this formalism and comment on its application to metrology.
Original language | English (US) |
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Article number | 063809 |
Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
Volume | 88 |
Issue number | 6 |
DOIs | |
State | Published - Dec 3 2013 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics