摘要Decomposition of a composite system C into different subsystems, A + B or D + E, may help in avoiding decoherence. For example, the environment-induced decoherence for an A + B system need not destroy entanglement present in the D + E system (A + B = C = D + E). This new approach opens some questions also in the foundations of the quantum computation theory that might eventually lead to a new model of quantum computation.
Abstract:Decomposition of a composite system C into different subsystems, A + B or D + E, may help in avoiding decoherence. For example, the environment-induced decoherence for an A + B system need not destroy entanglement present in the D + E system (A + B = C = D + E). This new approach opens some questions also in the foundations of the quantum computation theory that might eventually lead to a new model of quantum computation.
[1] Nielsen M A and Chuang I L 2000 Quantum Computationand Quantum Information (Cambridge: Cambridge University Press) [2] Zurek W H 1982 Phys. Rev. D 26 1862 [3] Dugi c M 1997 Physica Scripta 56 560 [4] Giulini D, Joos E, Kiefer C, Kupsch J, Stamatesku I O andZeh H D 1996 Decoherence and the Appearance of a ClassicalWorld in Quantum Theory (Berlin: Springer) [5] von Neumann J 1955 Mathematical Foundations of QuantumMechanics (Princeton: Princeton University Press) [6] d'Espagnat B 1971 Conceptual Foundations of QuantumMechanics (Reading, MA: Benjamin) [7] Wheeler J A and Zurek W H 1983 Quantum Theory ofMeasurement (Princeton: Princeton University Press) [8] Kraus K 1983 States, Effects, and Operations(Berlin: Springer) [9] Shor P 1995 Phys. Rev. A 52 2493 [10] Steane A M 1996 Phys. Rev. Lett. 77 793 [11] Gottesman D 1996 Phys. Rev. A 54 1862 [12] Zanardi P and Rasetti M 1998 Phys. Rev. Lett. 79 3306 [13] Knill E, Laflamme R and Viola L 1999 eprint arXivequant-ph/9908066 [14] Dugi c M 2000 Quantum Computers and Computing 1 102 [15] Dugi c M, Jekni c J 2006 Int. J. Theor. Phys. 45 2215 [16] Dugi c M, Jekni c-Dugi c J 2007 Int. J.Theor. Phys. (online-first, August 2007: DOI10.1007/s10773-007-9504-1) [17] Graham R and Miyazaki S 1996 Phys. Rev. A 532683 [18] Bartlett S D and Wiseman H M 2003 eprint arXivequant-ph/0303140 [19] Childs A M, Leung D W and Nielsen M A 2005 Phys.Rev. A 71 032318 [20] Brukner \v C, Kim M S, Pan J W and Zeilinger A 2003 Phys. Rev. A 68 062105