It is shown that quantum non-demolition stroboscopic measurements of a complex amplitude of a harmonic oscillator are obtained as a limit of a multipump back-action evasion scheme. As a consequence of the analogy between these two strategies a new stroboscopic scheme for the detection of small displacements in macroscopic mechanical oscillators is proposed.
QUANTUM NONDEMOLITION STROBOSCOPIC OBSERVABLES AND MULTIPUMPING BACK-ACTION EVASION SCHEMES
ONOFRIO, ROBERTO
1990
Abstract
It is shown that quantum non-demolition stroboscopic measurements of a complex amplitude of a harmonic oscillator are obtained as a limit of a multipump back-action evasion scheme. As a consequence of the analogy between these two strategies a new stroboscopic scheme for the detection of small displacements in macroscopic mechanical oscillators is proposed.File in questo prodotto:
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