Entanglement concentration for unknown atomic entangled states via entanglement swapping [PDF]
Physical Review A, 2005 An entanglement concentration scheme for unknown atomic entanglement states is proposed via entanglement swapping in cavity QED. Because the interaction used here is a large-detuned one between two driven atoms and a quantized cavity mode, the effects of
Cao, Zhuo-Liang +3 more
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Entanglement concentration after a multi-interactions channel [PDF]
Advanced Science Letters, 2008 Different procedures have been developed in order to recover entanglement after propagation over a noisy channel. Besides a certain amount of noise, entanglement is completely lost and the channel is called entanglement breaking. Here we investigate both
De Martini, Francesco +4 more
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Entanglement Manipulation and Concentration [PDF]
Physical Review A, 2000 We introduce a simple, experimentally realisable, entanglement manipulation protocol for exploring mixed state entanglement. We show that for both non-maximally entangled pure, and mixed polarisation-entangled two qubit states, an increase in the degree ...
Munro, W. J., Thew, R. T.
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Quantum Networks for Concentrating Entanglement [PDF]
Journal of Physics A: Mathematical and General, 2001 If two parties, Alice and Bob, share some number, n, of partially entangled pairs of qubits, then it is possible for them to concentrate these pairs into some smaller number of maximally entangled states.
Bennett C +5 more
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Efficient electronic entanglement concentration assisted with single mobile electron [PDF]
, 2012 We present an efficient entanglement concentration protocol (ECP) for mobile electrons with charge detection. This protocol is quite different from other ECPs for one can obtain a maximally entangled pair from a pair of less-entangled state and a single ...
Cao C +20 more
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Single-photon-assisted entanglement concentration of a multi-photon system in a partially entangled W state with weak cross-Kerr nonlinearity [PDF]
, 2012 We propose a nonlocal entanglement concentration protocol (ECP) for $N$-photon systems in a partially entangled W state, resorting to some ancillary single photons and the parity-check measurement based on cross-Kerr nonlinearity.
Bao-Cang Ren +65 more
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Experimental Realization of Entanglement Concentration and A Quantum Repeater [PDF]
, 2003 We report an experimental realization of entanglement concentration using two polarization-entangled photon pairs produced by pulsed parametric down-conversion.
An-Ning Zhang +5 more
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Qubit- and entanglement-assisted optimal entanglement concentration [PDF]
Physical Review A, 2000 We present two method for optimal entanglement concentration from pure entangled states by local actions only. However a prior knowledge of the Schmidt coefficients is required. The first method is optimally efficient only when a finite ensemble of pure entangled states are available whereas the second method realizes the single pair optimal ...
Somshubhro Bandyopadhyay
openalex +4 more sources
Matching relations for optimal entanglement concentration and purification [PDF]
Sci Rep, 2016 Fan‐Zhen Kong +4 more
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Entanglement concentration of continuous variable quantum states [PDF]
Physical Review A, 2002 We propose two probabilistic entanglement concentration schemes for a single copy of two-mode squeezed vacuum state. The first scheme is based on the off-resonant interaction of a Rydberg atom with the cavity field while the second setup involves the ...
A. Furusawa +51 more
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