REMOTE PREPARATION OF THE TWO-PARTICLE STATE
نویسندگان
چکیده
منابع مشابه
Remote state preparation.
Quantum teleportation uses prior entanglement and forward classical communication to transmit one instance of an unknown quantum state. Remote state preparation (RSP) has the same goal, but the sender knows classically what state is to be transmitted. We show that the asymptotic classical communication cost of RSP is one bit per qubit--half that of teleportation--and even less when transmitting...
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An outer bound on the low-entanglement remote state preparation ebits vs bits tradeoff curve [Bennett et al., quant-ph/0006044, 2000] is found using techniques of classical information theory. We show this bound to be optimal among an important class of protocols and conjecture optimality even without this restriction.
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We consider the problem of remote state preparation recently studied in several papers. We show that for a finite subset of the set S(K) of quantum states in the Hilbert space K, this problem can be solved with optimal communication, in the presence of entanglement.
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We experimentally demonstrate the first remote state preparation of arbitrary single-qubit states, encoded in the polarization of photons generated by spontaneous parametric down-conversion. Utilizing degenerate and nondegenerate wavelength entangled sources, we remotely prepare arbitrary states at two wavelengths. Further, we derive theoretical bounds on the states that may be remotely prepare...
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ژورنال
عنوان ژورنال: International Journal of Quantum Information
سال: 2008
ISSN: 0219-7499,1793-6918
DOI: 10.1142/s0219749908003669