Quantum measurement noise for observation of a particle in a magnetic field

Autor:	G. A. Golubtsova
Rok vydání:	1986
Předmět:	Physics Statistical and Nonlinear Physics Allowance (engineering) Noise (electronics) Charged particle Magnetic field symbols.namesake Quantum electrodynamics Path integral formulation symbols Particle Feynman diagram Quantum Mathematical Physics
Zdroj:	Theoretical and Mathematical Physics. 66:279-284
ISSN:	1573-9333 0040-5779
Popis:	The quantum theory of continuous measurements based on Feynman integration ''in finite limits'' is used in the problem of following the coordinates of a particle moving in a magnetic field. The probability of a particular result of the following for known external force is found, and, conversely, the accuracy with which the external force can be recovered from the known result of measurement is estimated. Allowance is made not only for the spread of the results due to instrumental error but also for the quantum-mechanical influence of the measuring process on the motion of the particle. Three characteristic regimes of measurement are identified: classical, quantum, optimal.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9964a2ff84a5e3d8f02d0d9f62c2ba96 https://doi.org/10.1007/bf01018226 Zobrazit plný text záznamu Full text from SpringerLink