Numerical Study of Josephson Junction Qubits With an Unharmonic Current-Phase Relation
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ieee-Inst Electrical Electronics Engineers Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This paper numerically analyzes the influence of second harmonics on the characteristics of Josephson junction quantum bits (qubits). It is shown that the splitting of energy states of phase qubits is sensitive to energy scale and unharmonicity parameters. On the other hand, for charge qubits, the expectation value of the Cooper-pair number is not affected by the inclusion of unharmonicity parameters, whereas the expectation value of the superconducting current is strongly influenced by energy scale and unharmonicity parameters. The numerical results seem to present the importance of second harmonics in the realization of superconducting qubits.
Açıklama
Anahtar Kelimeler
Charge quantum bit (qubit); phase qubit; single Josephson junction; unharmonics
Kaynak
Ieee Transactions On Applied Superconductivity
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
21
Sayı
5
