M Barbieri et al 2009 New J. Phys. 11 093012 doi:10.1088/1367-2630/11/9/093012
M Barbieri1,2,4, M E Goggin1,3, M P Almeida1, B P Lanyon1 and A G White1
Show affiliationsUsing a linear optic quantum gate we perform a variable strength quantum non-demolition measurement, to elucidate the role of which-path knowledge in a complementarity experiment. Specifically, we demonstrate that the entanglement created by the measurement interaction prevents an exhaustive description in terms of complementary wave-like and particle-like behaviour of a single photon in an interferometer.
03.67.Lx Quantum computation architectures and implementations
03.67.Mn Entanglement measures, witnesses, and other characterizations
Issue 9 (September 2009)
Received 1 May 2009
Published 14 September 2009
M Barbieri et al 2009 New J. Phys. 11 093012
D-X Ye et al 2002 Nanotechnology 13 615
Gregory Boverman et al 2007 Phys. Med. Biol. 52 3619
Francesca Dini et al 2009 Nanotechnology 20 055502
M Rassart et al 2008 New J. Phys. 10 033014
J Twamley and G J Milburn 2006 New J. Phys. 8 328
John Baker et al 2000 Class. Quantum Grav. 17 L149
Charles Santori et al 2009 New J. Phys. 11 123009
Tommaso Castellani and Andrea Cavagna J. Stat. Mech. (2005) P05012
C Cammarota et al J. Stat. Mech. (2009) L12002