PIRSA:08080001 Scientific Series Quantum Foundations

DOI10.48660/08080001

Conference/School: Quantum Estimation: Theory and Practice - 2008

DE MARTINI, F. (2008). Entanglement and nonlocality in microscopic - macroscopic systems . Perimeter Institute. https://pirsa.org/08080001

DE MARTINI, FRANCESCO. Entanglement and nonlocality in microscopic - macroscopic systems . Perimeter Institute, Aug. 26, 2008, https://pirsa.org/08080001 

@misc{ pirsa_PIRSA:08080001,
  doi = {10.48660/08080001},
  url = {https://pirsa.org/08080001},
  author = {DE MARTINI, FRANCESCO},
  keywords = {Quantum Foundations},
  language = {en},
  title = {Entanglement and nonlocality in microscopic - macroscopic systems },
  publisher = {Perimeter Institute},
  year = {2008},
  month = {aug},
  note = {PIRSA:08080001 see, \url{https://pirsa.org}}
}

Abstract

Theoretical and experimental results on the Quantum Injected Optical Parametric Amplification (QI-OPA) of optical qubits in the high gain regime (g > 6) are reported. The entanglement of the related Schroedinger Cat-State (SCS) is demonstrated as well as the establishment of Phase-Covariant quantum cloning for a Macrostate consisting of about 106 particles. In addition, the violation of the CHSH inequality is has been realized experimentally. According to the original 1935 definition of the SCS, the overall apparatus establishes for the first time the nonlocal correlations between a microcopic spin (qubit) and a high J angular momentum i.e. a macroscopic multiparticle system close to the classical limit. Applications to Quantum Information will be discussed.

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