K. N. Cassemiro, K. Laiho, and C. Silberhorn, “Accessing the purity of a single photon by the width of the Hong–Ou–Mandel interference,”10.1088/1367-2630/12/11/113052__New Journal of Physics, vol. 12, no. 11, Art. no. 113052, 2010, doi:10.1088/1367-2630/12/11/113052 .

A. Schreiber et al., “Photons Walking the Line: A Quantum Walk with Adjustable Coin Operations,”10.1103/physrevlett.104.050502__Physical Review Letters, vol. 104, no. 5, Art. no. 050502, 2010, doi:10.1103/physrevlett.104.050502 .

M. Avenhaus, K. Laiho, M. V. Chekhova, and C. Silberhorn, “Accessing Higher Order Correlations in Quantum Optical States by Time Multiplexing,”10.1103/physrevlett.104.063602__Physical Review Letters, vol. 104, no. 6, Art. no. 063602, 2010, doi:10.1103/physrevlett.104.063602 .

A. M. Braczyk, T. C. Ralph, W. Helwig, and C. Silberhorn, “Optimized generation of heralded Fock states using parametric down-conversion,”10.1088/1367-2630/12/6/063001__New Journal of Physics, vol. 12, no. 6, Art. no. 063001, 2010, doi:10.1088/1367-2630/12/6/063001 .

U. L. Andersen, G. Leuchs, and C. Silberhorn, “Continuous-variable quantum information processing,”10.1002/lpor.200910010__Laser &;amp; Photonics Reviews, vol. 4, no. 3, pp. 337–354, 2009, doi:10.1002/lpor.200910010 .

Ch. Silberhorn, N. Korolkova, and G. Leuchs, “Quantum Key Distribution with Bright Entangled Beams,”10.1103/physrevlett.88.167902__Physical Review Letters, vol. 88, no. 16, Art. no. 167902, 2002, doi:10.1103/physrevlett.88.167902 .