Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Improving performance of probabilistic programmable quantum processors   We present a systematic analysis how one can improve performance of
probabilistic programmable quantum processors. We generalize a simple
Vidal-Masanes-Cirac processor that realizes U(1) rotations on a qubit with the
phase of the rotation encoded in a state of the program register. We show how
the probability of success of the probabilistic processor can be enhanced by
using the processor in loops. In addition we show that the same strategy can be
utilized for a probabilistic implementation of non-unitary transformations on
qubits. In addtion, we show that an arbitrary SU(2) transformations of qubits
can be encoded in program state of a universal programmable probabilistic
quantum processor. The probability of success of this processor can be enhanced
by a systematic correction of errors via conditional loops. Finally, we show
that all our results can be generalized also for qudits. In particular, we show
how to implement SU (N) rotations of qudits via programmable quantum processor
and how the performance of the processor can be enhanced when it is used in
loops.

1
The categories of this paper are: cs
3
The categories of this paper are: physics
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int