Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The quantization of persistent current qubit. The role of inductance   The Hamiltonian of persistent current qubit is found within well known
quantum mechanical procedure. It allows a selfconsistent derivation of the
current operator in a two state basis. It is shown that the current operator is
not diagonal in a flux basis. A non diagonal element comes from the finite
inductance of the qubit. The results obtained in the paper are important for
the circuits where two or more flux qubits are coupled inductively.

34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin