Continuous quantum monitoring of position of nonlinear oscillators

Application of the path-integral approach to continuous measurements leads to effective Lagrangians or Hamiltonians in which the effect of the measurement is taken into account through an imaginary term. We apply these considerations to nonlinear oscillators with use of numerical computations to eva...

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Bibliographic Details
Published in:Physics letters. A 1991-12, Vol.161 (3), p.236-240
Main Authors: Mensky, Michael B., Onofrio, Roberto, Presilla, Carlo
Format: Article
Language:English
Subjects:
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Physics
Quantum mechanics
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Summary:Application of the path-integral approach to continuous measurements leads to effective Lagrangians or Hamiltonians in which the effect of the measurement is taken into account through an imaginary term. We apply these considerations to nonlinear oscillators with use of numerical computations to evaluate quantum limitations for monitoring position in such a class of systems.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(91)90010-6