Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Robust Quantum Control using Hybrid Pulse Engineering   The development of efficient algorithms that generate robust quantum controls
is crucial for the realization of quantum technologies. The commonly used
gradient-based optimization algorithms are limited by their sensitivity to the
initial guess, which affects their performance. Here we propose combining the
gradient method with the simulated annealing technique to formulate a hybrid
algorithm. Our numerical analysis confirms its superior convergence rate. Using
the hybrid algorithm, we generate spin-selective $\pi$ pulses and employ them
for experimental measurement of local noise-spectra in a three-qubit NMR
system. Moreover, here we describe a general method to construct
noise-resilient quantum controls by incorporating noisy fields within the
optimization routine of the hybrid algorithm. On experimental comparison with
similar sequences obtained from standard algorithms, we find remarkable
robustness of the hybrid sequences against dephasing errors.

31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin