Flexible quantum private queries based on quantum key distribution

Details Flexible quantum private queries based on quantum key distribution Flexible quantum private queries based on quantum key distribution

2011-11-07

arxiv.org/abs/1111.1511v1

Physics

Quantum Physics

6 pages, 5 figures

Scientific paper

We present a flexible quantum-key-distribution-based protocol for quantum private queries. Similar to M. Jakobi et al's protocol [Phys. Rev. A 83, 022301 (2011)], it is loss tolerant, practical and robust against quantum memory attack. Furthermore, our protocol is more flexible and controllable. We show that, by adjusting the value of $\theta$, the average number of the key bits Alice obtains can be located on any fixed value the users wanted for any database size. And the parameter $k$ is generally smaller (even $k=1$ can be achieved) when $\theta<\pi/4$, which implies lower complexity of both quantum and classical communications. Furthermore, the users can choose a smaller $\theta$ to get better database security, or a larger $\theta$ to obtain a lower probability with which Bob can correctly guess the address of Alice's query.

Affiliated with

Also associated with

No associations

Rating

Flexible quantum private queries based on quantum key distribution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Flexible quantum private queries based on quantum key distribution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flexible quantum private queries based on quantum key distribution will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-690104