Related papers: Chen and Diao's quantum search algorithm is not ex…

This paper has been withdrawn by the authors. It has been superseded by hep-th/0309154

The paper is withdrawn.

This paper has been withdrawn by the author, due an error in claim 1.

This paper has been withdrawn by the author.

Withdrawn; replaced by longer, more detailed paper quant-ph/0010065.

This paper has been withdrawn

Quantum mechanical search induces polynomial speed up in an unsorted database search process. In case of classical linear search the computational time increases with the dimensionality of the query. However, quantum parallelism, inherent…

This paper has been withdrawn.

The driving force in the pursuit for quantum computation is the exciting possibility that quantum algorithms can be more efficient than their classical analogues. Research on the subject has unraveled several aspects of how that can happen.…

The paper has been withdrawn by the author.

This paper has been withdrawn by the author due to a crucial error in eq.59. I apologize for the inconveniences.

This paper has been withdrawn due to that the same conclusion has been proposed before.

The paper has been withdrawn.

This paper has been withdrawn by the authors; replaced by arXiv:0705.2531v2 [quant-ph].

We recast Grover's generalised search algorithm in a geometric language even when the states are not approximately orthogonal. We provide a possible search algorithm based on an arbitrary unitary transformation which can speed up the steps…

This paper has been withdrawn due to an incorrect proof.

This paper has been withdrawn.

This paper has been withdrawn by the authors.

This paper has been withdrawn by the author, due to a crucial error in the proof of Thm.1

This paper has been withdrawn by the authors due to a crucial error in calculation.