nt - p h / 06 03 17 4 v 1 20 M ar 2 00 6 Optical implementation of the encoding of two qubits to a single qutrit
نویسنده
چکیده
Lucie Bart̊ušková, Antońın Černoch, Radim Filip, 2 Jaromı́r Fiurášek, Jan Soubusta, and Miloslav Dušek Department of Optics, Palacký University, 17. listopadu 50, 772 00 Olomouc, Czech Republic Institut für Optik, Information und Photonik, Max-Planck Forschungsgruppe, Universität Erlangen-Nürnberg, Günther-Scharowsky str. 1, 91058, Erlangen, Germany Joint Laboratory of Optics of Palacký University and Institute of Physics of Academy of Sciences of the Czech Republic, 17. listopadu 50A, 779 07 Olomouc, Czech Republic (Dated: March 22, 2006)
منابع مشابه
ua nt - p h / 04 03 11 8 v 1 1 6 M ar 2 00 4 Experimental Purification of Single Qubits
We report the experimental realization of the purification protocol for single qubits sent through a depolarization channel. The qubits are associated with polarization encoded photon particles and the protocol is achieved by means of passive linear optical elements. The present approach may represent a convenient alternative to the distillation and error correction protocols of quantum informa...
متن کاملar X iv : q ua nt - p h / 06 11 18 7 v 1 1 7 N ov 2 00 6 Philosophical Aspects of Quantum Information Theory
2 First steps with quantum information 3 2.1 Bits and qubits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 The no-cloning theorem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Quantum cryptography . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3.1 Key Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4 Entanglement-as...
متن کاملar X iv : q ua nt - p h / 02 12 07 9 v 2 1 4 M ar 2 00 3 Quantum information processing with trapped ions
Experiments directed towards the development of a quantum computer based on trapped atomic ions are described briefly. We discuss the implementation of single qubit operations and gates between qubits. A geometric phase gate between two ion qubits is described. Limitations of the trapped-ion method such as those caused by Stark shifts and spontaneous emission are addressed. Finally, we describe...
متن کاملar X iv : q ua nt - p h / 06 11 18 4 v 1 1 7 N ov 2 00 6 Comment on ’ Teleportation of two quNit entanglement : Exploiting local resources ’
Recently, in Ref.[1] N. Ba An proposed a teleportation protocol, in which the new interesting idea of exploiting local resources to do teleportation [2] is generalized to the case of arbitrary quNits. After carefully rededucting the formulae in Ref.[1], however, we find some of them are wrong. As a consequence, the unitary operations which need to be performed to reconstruct the unknown biparti...
متن کاملar X iv : q ua nt - p h / 06 03 00 8 v 2 2 1 Ju n 20 06 ON POSITIVE DECOMPOSABLE MAPS
A partial characterization (a necessary condition for decompos-ability and a criterion for nondecomposability) of decomposable positive maps is given. Furthermore, a clarification of the structure of the set of positive maps is provided.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006