Towards Quantum Experiments with Human Eyes as Detectors Based on Cloning via Stimulated Emission
- 8 September 2009
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 103 (11), 113601
- https://doi.org/10.1103/physrevlett.103.113601
Abstract
We show theoretically that a large Bell inequality violation can be obtained with human eyes as detectors, in a “micro-macro” experiment where one photon from an entangled pair is greatly amplified via stimulated emission. The violation is robust under photon loss. This leads to an apparent paradox, which we resolve by noting that the violation proves the existence of entanglement before the amplification. The same is true for the micro-macro experiments performed so far with conventional detectors. However, we also prove that there is genuine micro-macro entanglement even for high loss.Keywords
This publication has 17 references indexed in Scilit:
- Possible entanglement detection with the naked eyePhysical Review A, 2008
- Entanglement Test on a Microscopic-Macroscopic SystemPhysical Review Letters, 2008
- Experimental realization of macroscopic coherence by phase-covariant cloning of a single photonPhysical Review A, 2007
- Quantum Cloning with an Optical Fiber AmplifierPhysical Review Letters, 2002
- Experimental Quantum Cloning of Single PhotonsScience, 2002
- Schroedinger cat states and optimum universal quantum cloning by entangled parametric amplificationOptics Communications, 2000
- Optimal Quantum Cloning via Stimulated EmissionPhysical Review Letters, 2000
- Single-photon detection by rod cells of the retinaReviews of Modern Physics, 1998
- Quantum copying: Beyond the no-cloning theoremPhysical Review A, 1996
- ENERGY, QUANTA, AND VISIONThe Journal of general physiology, 1942