"Interaction-free" quantum measurements

Summary form only given.Using the complementary wave-like and particle-like natures of photons, one can make interaction-free measurements (IFM)-the presence of an object can be determined with no photons being absorbed. By using an application of the quantum Zeno effect (weakly and repeatedly testi...

Full description

Saved in:
Bibliographic Details
Main Authors: White, A.G., Kwiat, P.G., Nairz, O., Weihs, G., Zeilinger, A.
Format: Conference Proceeding
Language:English
Subjects:
Frequency
Intensity modulation
Laser excitation
Nonlinear optics
Optical modulation
Optical polarization
Probes
Reflectivity
Switches
Temperature
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Summary form only given.Using the complementary wave-like and particle-like natures of photons, one can make interaction-free measurements (IFM)-the presence of an object can be determined with no photons being absorbed. By using an application of the quantum Zeno effect (weakly and repeatedly testing for the object's presence so that the otherwise coherent evolution of the interrogating photon is inhibited), we have demonstrated the feasibility of IFMs with an efficiency of >85%, higher than that possible in the original IFM scheme, where, at most, half of the measurements could be interaction free. We also investigate various interaction-free imaging systems, demonstrate imaging with a resolution
DOI:10.1109/IQEC.1998.680063