Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Resonator-Assisted Quantum Bath Engineering of a Flux Qubit   We demonstrate quantum bath engineering for preparation of any orbital state
with controllable phase factor of a superconducting flux qubit assisted by a
microwave coplanar waveguide resonator. We investigate the polarization
efficiency of the arbitrary direction rotating on the Bloch sphere, and obtain
an effective Rabi frequency by using the convergence condition of Markovian
master equation. The processes of polarization can be implemented effectively
in a dissipative environment created by resonator photon loss when the spectrum
of the microwave resonator matches with the specially tailored Rabi and
resonant frequencies of the drive. Our calculations indicate that
state-preparation fidelities in excess of 99\% and the required time on the
order of magnitude of microsecond are in principle possible for experimentally
reasonable sample parameters. Furthermore, our proposal could be applied to
other systems with spin-based qubits.

25
The categories of this paper are: patt-sol
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg