Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent oscillations in a superconducting tunable flux qubit
  manipulated without microwaves   We experimentally demonstrate the coherent oscillations of a tunable
superconducting flux qubit by manipulating its energy potential with a
nanosecond-long pulse of magnetic flux. The occupation probabilities of two
persistent current states oscillate at a frequency ranging from 6 GHz to 21
GHz, tunable via the amplitude of the flux pulse. The demonstrated operation
mode allows to realize quantum gates which take less than 100 ps time and are
thus much faster compared to other superconducting qubits. An other advantage
of this type of qubit is its insensitivity to both thermal and magnetic field
fluctuations.

13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc