Realization of a Decoherence-free, Optimally Distinguishable Mesoscopic Quantum Superposition
Quantum Physics
2009-11-11 v2
Abstract
We report the realization of an entangled quantum superposition of M=12 photons by a high gain, quantum-injected optical parametric amplification. The system is found so highly resilient against decoherence to exhibit directly accessible mesoscopic interference effects at normal temperature. By modern tomographic methods the non-separability and the quantum superposition are demonstrated for the overall mesoscopic output state of the dynamic ''closed system''. The device realizes the condition conceived by Erwin Schroedinger with his 1935 paradigmatic ''Cat'' apologue, a fundamental landmark in quantum mechanics.
Keywords
Cite
@article{arxiv.quant-ph/0508196,
title = {Realization of a Decoherence-free, Optimally Distinguishable Mesoscopic Quantum Superposition},
author = {Francesco De Martini and Fabio Sciarrino and Veronica Secondi},
journal= {arXiv preprint arXiv:quant-ph/0508196},
year = {2009}
}
Comments
10 pages, 3 figures