Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The quantization of a charge qubit. The role of inductance and gate
  capacitance   The Hamiltonian of a charge qubit, which consists of two Josephson junctions
is found within well known quantum mechanical procedure. The inductance of the
qubit is included from the very beginning. It allows a selfconsistent
derivation of the current operator in a two state basis. It is shown that the
current operator has nonzero nondiagonal matrix elements both in the charge and
the eigenstate basis. It is also shown that the interaction of the qubit with
its own LC resonator has a noticeable influence on the qubit energies. The
influence of the junctions asymmetry and the gate capacitance on the matrix
elements of the current operator and on the qubit energies are calculated. The
results obtained in the paper are important for the circuits where two or more
charge qubits are coupled with the aid of inductive coil.

15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph