Quick search Find article
Quick search
Find article
Deutsche Physikalische Gessellschaft IOP Institute of Physics

Quantum teleportation and entanglement swapping for spin systems

Dominic W Berry1 and Barry C Sanders1,2

Show affiliations


We analyse quantum teleportation (QT) and entanglement swapping (ES) for spin systems. If the permitted operations are restricted to the Ising interaction, plus local rotations and spin measurements, high-fidelity teleportation is achievable for quantum states that are close to the maximally weighted spin state. ES is achieved, and is maximized for a combination of entangled states and Bell measurements that is different from the QT case. If more general local unitary transformations are considered, then it is possible to achieve perfect teleportation and ES.


PACS

03.65.Ud Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)

42.50.Dv Quantum state engineering and measurements

Subjects

Optics, quantum optics and lasers

Quantum information and quantum mechanics

Dates

Issue 1 (February 2002)

Received 20 November 2001

Published 28 February 2002



  1. Quantum teleportation and entanglement swapping for spin systems

    Dominic W Berry and Barry C Sanders 2002 New J. Phys. 4 8

  2. Small quantum networks operating as quantum thermodynamic machines

    M. J. Henrich et al 2006 Europhys. Lett. 76 1057

  3. Rabi oscillations of a qubit coupled to a two-level system

    Y. M. Galperin et al 2005 Europhys. Lett. 71 21

  4. Enhancing superconductivity: Magnetic impurities and their quenching by magnetic fields

    T.-C. Wei et al 2006 Europhys. Lett. 75 943

  5. Decoherence from ensembles of two-level fluctuators

    Josef Schriefl et al 2006 New J. Phys. 8 1

  6. Monte Carlo study of Bose Laughlin wave function for filling factors 1/2, 1/4 and 1/6

    O. Ciftja 2006 Europhys. Lett. 74 486

  7. A double-slit 'which-way' experiment on the complementarity–uncertainty debate

    R Mir et al 2007 New J. Phys. 9 287

  8. Roughness of tensile crack fronts in heterogenous materials

    E. Katzav and M. Adda-Bedia 2006 Europhys. Lett. 76 450

  9. Tema con variazioni: quantum channel capacity

    Dennis Kretschmann and Reinhard F Werner 2004 New J. Phys. 6 26

  10. The role of nonlinear friction in the dewetting of thin polymer films

    T. Vilmin et al 2006 Europhys. Lett. 73 906

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.