0112022v2

related topics
{state, states, entangled}
{alice, bob, state}
{entanglement, phys, rev}
{group, space, representation}
{state, states, coherent}
{state, phys, rev}
{bell, inequality, local}
{measurement, state, measurements}
{field, particle, equation}
{let, theorem, proof}
{energy, gaussian, time}
{states, state, optimal}

Entanglement swapping between multi-qudit systems

Jan Bouda, Vladimir Buzek

abstract: We generalize the entanglement swapping scheme originally proposed for two pairs of qubits to an arbitrary number $q$ of systems composed from an arbitrary number $m_j$ of qudits. Each of the system is supposed to be prepared in a maximally entangled state of $m_j$ qudits, while different systems are not correlated at all. We show that when a set $\sum_{j=1}^q a_j$ particles (from each of the $q$ systems $a_j$ particles are measured) are subjected to a generalized Bell-type measurement, the resulting set of $\sum_{j=1}^q (m_j-a_j)$ particles will collapse into a maximally entangled state.

oai_identifier:
oai:arXiv.org:quant-ph/0112022
categories:
quant-ph
comments:
7 revtex pages, 4 figures
doi:
10.1088/0305-4470/34/20/304
arxiv_id:
quant-ph/0112022
journal_ref:
J PHYS A-MATH GEN 34: (20) 4301-4311 MAY 25 2001
created:
2001-12-04
updated:
2002-01-19

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