Weak value measurement with an incoherent measuring device
نویسندگان
چکیده
منابع مشابه
Measuring measurement–disturbance relationships with weak values
Using formal definitions for the measurement precision and the disturbance (measurement back-action) η, Ozawa (2003 Phys. Rev. A 67 042105) has shown that Heisenberg’s claimed relation between these quantities is false in general. Here, we show that the quantities introduced by Ozawa can be determined experimentally, using no prior knowledge of the measurement under investigation—both quantitie...
متن کاملPicoradian deflection measurement with an interferometric quasi-autocollimator using weak value amplification.
We present an "interferometric quasi-autocollimator" that employs weak value amplification to measure angular deflections of a target mirror. The device has been designed to be insensitive to all translations of the target. We present a conceptual explanation of the amplification effect used by the device. An implementation of the device demonstrates sensitivities better than 10 picoradians per...
متن کاملUltrasensitive beam deflection measurement via interferometric weak value amplification.
We report on the use of an interferometric weak value technique to amplify very small transverse deflections of an optical beam. By entangling the beam's transverse degrees of freedom with the which-path states of a Sagnac interferometer, it is possible to realize an optical amplifier for polarization independent deflections. The theory for the interferometric weak value amplification method is...
متن کاملWeak Force Measurement in Bistable Optomechanical System
One of the main milestones in the study of opto-mechanical system is to increase the sensitivity of weak forces measurement up to the standard quantum limit. We have studied the detection of weak force under a bistable condition in red detuned regime. In this case, dynamics of the system behaves asymptotically similar to stationary state and applying external force affects phase and fluctuation...
متن کاملMeasuring vibrations in MRI with an inexpensive device
Correspondence: [email protected] Vibrations of MRI systems impair the image quality and the results of studies in different ways. In functional studies the noise could affect the subjects brain activation [1] whereas in structural studies, especially diffusion tensor imaging (DTI), the vibrations could have direct or indirect impact on the image itself [2]. Setups for measuring and si...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2010
ISSN: 1367-2630
DOI: 10.1088/1367-2630/12/2/023036