Continuous measurement of a qudit using dispersively coupled radiation
نویسندگان
چکیده
We analyze the continuous monitoring of a qudit coupled to cavity using both phase-preserving and phase-sensitive amplification. The quantum trajectories system are described by stochastic master equation, for which we derive appropriate Lindblad operators. measurement back-action causes spiraling in state coordinates during collapse, increases as levels become less distinguishable. discuss two examples: two-level an $N$-dimensional meter with rotational symmetry quadrature space. also provide comparison effects detection on equation show that average behavior is same cases, but individual collapse at different rates depending axis plane.
منابع مشابه
Dispersively coupled optomechanical systems: a new approach to quantum optics with radiation pressure
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physreva.105.052229