Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum speed-up of multiqubit open system via dynamical decoupling
  pulses   We present a method to accelerate the dynamical evolution of multiqubit open
system by employing dynamical decoupling pulses (DDPs) when the qubits are
initially in W-type states. It is found that this speed-up evolution can be
achieved in both of the weak-coupling regime and the strong-coupling regime.
The physical mechanism behind the acceleration evolution is explained as the
result of the joint action of the non-Markovianity of reservoirs and the
excited-state population of qubits. It is shown that both of the
non-Markovianity and the excited-state population can be controlled by DDPs to
realize the quantum speed-up.

24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an