0000000000668648

AUTHOR

Anton Zeilinger

showing 2 related works from this author

Linear optical implementation of nonlocal product states and their indistinguishability

2001

In a recent paper Bennett et al.[Phys. Rev.A 59, 1070 (1999)] have shown the existence of a basis of product states of a bipartite system with manifest non-local properties. In particular these states cannot be completely discriminated by means of bilocal measurements. In this paper we propose an optical realization of these states and we will show that they cannot be completely discriminate by means of a global measurement using only optical linear elements, conditional transformation and auxiliary photons.

Quantum opticsPhysicsQuantum PhysicsPhotonLinear optical implementationBasis (linear algebra)Hilbert spaceHilbert spaceFOS: Physical sciencesBipartite systemAtomic and Molecular Physics and Opticssymbols.namesakeTransformation (function)Product (mathematics)Quantum mechanicssymbolsQuantum Physics (quant-ph)Quantum information scienceRealization (systems)Physical Review A
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Tensor-product states and local indistinguishability: an optical linear implementation

2000

In this paper we investigate the properties of distinguishability of an orthogonal set of product states of two three level particle system by a simple class of joint measures. Here we confine ourselves to a system of analysis built up of linear elements, such as beam splitters and phase shifters, delay lines, electronically switched linear devices and auxiliary photons. We present here the impossibility of realization of a perfect never falling analyzer with this tools.

Hilbert spaceQuantum entanglementTopologylaw.inventionQuantum nonlocalitysymbols.namesakeTensor productQuantum Information Entanglement Non-localitylawProduct (mathematics)Electronic engineeringsymbolsQuantum informationRealization (systems)Beam splitterMathematicsAIP Conference Proceedings
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