Luis Aina, Alfredo2023-06-202023-06-202004-02-11[1] Z.Y. Ou and L. Mandel, Phys. Rev. Lett. 61, 50 (1988). [2] Y.H. Shih and C.O. Alley, Phys. Rev. Lett. 61, 2921 (1988). [3] T.J. Herzog, P.G. Kwiat, H. Weinfurter, and A. Zeilinger, Phys. Rev. Lett. 75, 3034 (1995). [4] P.G. Kwiat, K. Mattle, H. Weinfurter, and A. Zeilinger, Phys. Rev. Lett. 75, 4337 (1995). [5] D. Bouwmeester, J.-W. Pan, K. Mattle, M. Eibl, H. Weinfurter, and A. Zeilinger, Nature (London) 390, 575 (1997). [6] J.-W. Pan, D. Bouwmeester, H. Weinfurter, and A. Zeilinger, Phys. Rev. Lett. 80, 3891 (1998). [7] G. Weihs, T. Jennewein, C. Simon, H. Weinfurter, and A. Zeilinger, Phys. Rev. Lett. 81, 5039 (1998). [8] D. Bouwmeester, J.-W. Pan, M. Daniell, H. Weinfurter, and A. Zeilinger, Phys. Rev. Lett. 82, 1345 (1999). [9] P.G. Kwiat, E. Waks, A.G. White, I. Appelbaum, and P.H. Eberhard, Phys. Rev. A 60, R773 (1999). [10] A.G. White, D.F.V. James, P.H. Eberhard, and P.G. Kwiat, Phys. Rev. Lett. 83, 3103 (1999). [11] T. Jennewein, C. Simon, G. Weihs, H. Weinfurter, and A. Zeilinger, Phys. Rev. Lett. 84, 4729 (2000). [12] A. Trifonov, G. Bjo¨rk, and J. So¨derholm, Phys. Rev. Lett. 86, 4423 (2001). [13] T. Jennewein, G. Weihs, J.-W. Pan, and A. Zeilinger, Phys. Rev. Lett. 88, 017903 (2002). [14] A. Zeilinger, Rev. Mod. Phys. 71, S288 (1999). [15] A. Luis, Phys. Rev. A 66, 013806 (2002). [16] A. Luis, Opt. Commun. 216, 165 (2003). [17] F.T. Arecchi, E. Courtens, R. Gilmore, and H. Thomas, Phys. Rev. A 6, 2211 (1972). [18] A. Luis, J. Phys. A 35, 8805 (2002); Phys. Lett. A 314, 197 (2003). [19] A.F. Abouraddy, A.V. Sergienko, B.E.A. Saleh, and M.C. Teich, Opt. Commun. 201, 93 (2002); G. Jaeger, M. Teodorescu-Frumosu, A. Sergienko, B.E.A. Saleh, and M.C. Teich, Phys. Rev. A 67, 032307 (2003). [20] S.C. Tiwari, J. Opt. B: Quantum Semiclassical Opt. 4, S39 (2002). [21] Ch. Simon and D. Bouwmeester, Phys. Rev. Lett. 91, 053601 (2003). [22] A. Luis, Phys. Rev. A 65, 034102 (2002), and references therein. [23] A. Luis and L. L. Sánchez-Soto, in Progress in Optics, edited by E. Wolf (Elsevier, Amsterdam, 2000), Vol. 41, p. 421. [24] A.P. Hines, R.H. McKenzie, and G.J. Milburn, Phys. Rev. A 67, 013609 (2003).1050-294710.1103/PhysRevA.69.023803https://hdl.handle.net/20.500.14352/51519©2004 The American Physical Society. I thank Professor S. C. Tiwari for valuable comments and suggestions.We compare the maximum achievable polarization correlations for classical-like separable states and quantum entangled states. For one-photon systems we find that the maximally entangled states have three times larger correlations than the maximum correlations achievable with separable states. However, for larger photon numbers we find that there are separable states with larger correlations than the maximally entangled states.engjournal articlehttp://dx.doi.org/10.1103/PhysRevA.69.023803http://journals.aps.org/open access535Entangled photonsBells-inequalityVisibilityViolationPairsÓptica (Física)2209.19 Óptica Física