# Best Teleportation Fidelity to date

1. Jul 6, 2006

### beautiful1

Hello all,

I am looking for references to experimentally measured quantum teleporation fidelities. In particular, I am trying to find what is the best fidelity to date.

So far I have:

Bouwmeester et al., Nature v390, p575 (1997),
0.70±0.3 (with polarization-encoded qubits, before subtracting the background counts)

Lombardi et al. Phys. Rev. Lett. v88, p070402 (2002),
0.95±0.6 (using vacuum-one-photon qubit)

Bowen et al. Phys. Rev. A v67, p032302 (2003),
0.64±0.02 (with quadrature squeezing, continuous variable teleportation.)

I'm sure most people are like me, and never bothered to look for others...but it would be great to know!

2. Jul 11, 2006

### beautiful1

Boschi et al., Phys. Rev. Lett. v80, p1120 (1998)
0.853±0.012 (polarization-encoded, k-vector entangled two photon system)

Fursawa et al., Science, v 282, p 706 (1998)

Kim et al., Phys. Rev. Lett., v86, p1370 (2001)
~0.83±?? (polarization-encoded, with complete Bell-state measurement)

Pan et al. Phys. Rev. Lett., v86, p4435 (2001)
0.85±?? (polarization-encoded, 4-fold GHZ state)

Jennewein et al., Phys. Rev. Lett., v88, p017903 (2002)
0.92±?? (polarization-encoded, entanglement swapping)

Marcikic et al., Nature v421, p509 (2003)
0.812±.025 (time-bin encoded, through 2 km of fibre)

Pan et al., Nature, v421, p721 (2003)
0.85±0.02 (polarization-encoded)

de Riedmatten et al., Phys. Rev. Lett., v92, p047904 (2004)
0.775±0.03 (time-bin entangled, over 2.2 km of fiber)

Ursin et al., Nature v430, p849 (2004),
0.90±?? (polarization-encoded, over 800 m of fibre under the Danube)

p.s. I don't think I can edit my original post...

Last edited: Jul 12, 2006
3. Jun 28, 2007

### beautiful1

Bump

I started this thread over a year ago, and today I wanted to see if anyone had any new information regarding openly reported, experimentally measured teleportation fidelities.