caa a22 4500 44586589X CHVBK 20180317145457.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1140/epjd/e2011-20153-9 doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-20153-9 Demonstrating various quantum effects with two entangled laser beams [Elektronische Daten] [B. Hage, J. Janoušek, S. Armstrong, T. Symul, J. Bernu, H. Chrzanowski, P. Lam, H. Bachor] We report on the preparation of entangled two mode squeezed states of yet unseen quality. Based on a measurement of the covariance matrix we found a violation of the Reid and Drummond EPR-criterion at a value of only 0.36 ± 0.03 compared to the threshold of 1. Furthermore, quantum state tomography was used to extract a single photon Fock state solely based on homodyne detection, demonstrating the strong quantum features of this pair of laser-beams. The probability for a single photon in this ensemble measurement exceeded 2/3. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Hage B. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut Janoušek J. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut Armstrong S. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut Symul T. Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut Bernu J. Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut Chrzanowski H. Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut Lam P. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut Bachor H. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut The European Physical Journal D Springer-Verlag 63/3(2011-08-01), 457-461 1434-6060 63:3<457 2011 63 10053 https://doi.org/10.1140/epjd/e2011-20153-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-20153-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hage B. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 700 1- Janoušek J. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 700 1- Armstrong S. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 700 1- Symul T. Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 700 1- Bernu J. Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 700 1- Chrzanowski H. Centre for Quantum Computation and Communication Technology, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 700 1- Lam P. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 700 1- Bachor H. ARC Centre of Excellence for Quantum-Atom Optics, Department of Quantum Science, The Australian National University, 0200, Canberra, Australian Capital Territory, Australia aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 63/3(2011-08-01), 457-461 1434-6060 63:3<457 2011 63 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer