Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Linear-depth quantum circuits for multi-qubit controlled gates   Quantum circuit depth minimization is critical for practical applications of
circuit-based quantum computation. In this work, we present a systematic
procedure to decompose multi-qubit-controlled unitary gate, which is essential
in many quantum algorithms, to controlled-NOT and single-qubit gates with which
quantum circuit depth only increases linearly with the number of control
qubits. Our algorithm does not require any ancillary qubits and achieves a
quadratic reduction of the circuit depth against known methods. We demonstrate
the advantage of our algorithm with proof-of-principle experiments implemented
on the IBM quantum cloud platform.

36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg