Related papers: And what if Bohm was right? The fundamental proble…
Quantum cryptography exploits principles of quantum physics for the secure processing of information. A prominent example is secure communication, i.e., the task of transmitting confidential messages from one location to another. The…
This paper has been withdrawn by the author due to a crucial sign error in equation 1.
Quantum cryptography can, in principle, provide unconditional security guaranteed by the law of physics only. Here, we survey the theory and practice of the subject and highlight some recent developments.
Uniquely among the sciences, quantum cryptography has driven both foundational research as well as practical real-life applications. We review the progress of quantum cryptography in the last decade, covering quantum key distribution and…
The paper has been withdrawn by the author due to unhappy mistake in the initial scope of the work.
A central claim in quantum cryptography is that secrecy can be proved rigorously, based on the assumption that the relevant information-processing systems obey the laws of quantum physics. This claim has recently been challenged by…
This paper has been withdrawn by the author due to an error in the computation of the central charge.
The paper has been withdrawn because the research work is still in progress.
This paper was withdrawn by the author. It turns out that similar ideas have been presented before. The author apologizes.
In this paper we analyze the security of the so-called quantum tomographic cryptography with the source producing entangled photons via an experimental scheme proposed in Phys. Rev. Lett. 92, 37903 (2004). We determine the range of the…
Quantum cryptography could well be the first application of quantum mechanics at the individual quanta level. The very fast progress in both theory and experiments over the recent years are reviewed, with emphasis on open questions and…
This paper has been withdrawn.
This paper has been withdrawn.
This paper has been withdrawn by the author, due a crucial error in Eq. 6.
This paper has been withdrawn by the author, due an error in computing the invariance of the so(4,1) and so(3,2) "inner product."
This paper has been withdrawn by the author. This paper is now obsolete. For a solution please see: arXiv:/1205.4265.
This paper was withdrawn by the author because severe errors were discovered.
This paper has been withdrawn by the author because there are some typos in proofs.
This paper has been withdrawn and replaced by quant-ph/0609207.
The paper is withdrawn by the author because it is superseded by cond-mat/0303357 .