摘要Positive-operator-value-measurement (POVM) is one of the essential components of quantum information processing (QIP). Recently a `binary measurement tree' (BST) strategy (PRA 77, 052104) is suggested for implementing arbitrary POVM by sequential two-operator POVMs. We present a simple novel two-operator POVM module via linear optics, which is employed as block to construct a `binary measurement tree' for implementing arbitrary POVM on single photonic polarization qubit. The total complexity of the experimental setup is significantly reduced in contrast to the previous works. As an example, we give the detailed settings of a well-known POVM.
Abstract：Positive-operator-value-measurement (POVM) is one of the essential components of quantum information processing (QIP). Recently a `binary measurement tree' (BST) strategy (PRA 77, 052104) is suggested for implementing arbitrary POVM by sequential two-operator POVMs. We present a simple novel two-operator POVM module via linear optics, which is employed as block to construct a `binary measurement tree' for implementing arbitrary POVM on single photonic polarization qubit. The total complexity of the experimental setup is significantly reduced in contrast to the previous works. As an example, we give the detailed settings of a well-known POVM.
[1] Nielsen M A and Chuang I L 2000 Quantum Computationand Quantum Information (Cambridge: Cambridge University Press) [2] Wang G and Ying M 2006 e-print arXiv:quant-ph/0608235 [3] Ahnert S E and Payne M C 2005 Phys. Rev. A 71012330 [4] Ahnert S E and Payne M C 2004 Phys. Rev. A 69012312 [5] Han Y et al 2008 Chin. Phys. Lett. 25 4195 [6] Chen P X, Bergou J A, Zhu S Y and Guo G C 2007 Phys.Rev. A 76 060303 [7] Andersson E et al 2008 Phys. Rev. A 77052104 [8] Franke-Arnold S et al 2001 Phys. Rev. A 63052301 [9] Peres A 1988 Phys. Lett. A 128 19 [10] Ekert A K, Huttner B, Palma G M and Peres A 1994 Phys. Rev. A 50 1047 [11] Brandt H E et al 1997 Phys. Rev. A 56 4456 [12] Ling A, Soh K P, Lamas-Linares A and Kurtsiefer C 2006 Phys. Rev. A 74 022309
2009, Vol. 26 
