Programmable two-qubit gates in capacitively coupled flopping-mode spin qubits

Cayao, Jorge; Benito, Mónica; Burkard, Guido

Programmable two-qubit gates in capacitively coupled flopping-mode spin qubits

Dateien

Cayao_2-195c3qhk62ybd4.pdfGröße: 642.37 KBDownloads: 129

Datum

2020

Autor:innen

Cayao, Jorge

Benito, Mónica

Burkard, Guido

Open Access-Veröffentlichung

Open Access Hybrid

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Physical Review B. American Physical Society (APS). 2020, 101(19), 195438. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.101.195438

Zusammenfassung

Recent achievements in the field of gate defined semiconductor quantum dots reinforce the concept of a spin-based quantum computer consisting of nodes of locally connected qubits which communicate with each other via superconducting circuit resonator photons. In this work we theoretically demonstrate a versatile set of quantum gates between adjacent spin qubits defined in semiconductor quantum dots situated within the same node of such a spin-based quantum computer. The electric dipole acquired by the spin of an electron that moves across a double quantum dot potential in a magnetic field gradient has enabled strong coupling to resonator photons and low-power spin control. Here we show that this flopping-mode spin qubit also provides with the tunability to program multiple two-qubit gates. Since the capacitive coupling between these qubits brings about additional dephasing, we calculate the estimated infidelity of different two-qubit gates in the most immediate possible experimental realizations.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

CAYAO, Jorge, Mónica BENITO, Guido BURKARD, 2020. Programmable two-qubit gates in capacitively coupled flopping-mode spin qubits. In: Physical Review B. American Physical Society (APS). 2020, 101(19), 195438. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.101.195438

BibTex

@article{Cayao2020-03-04T15:37:21ZProgr-51060,
  year={2020},
  doi={10.1103/PhysRevB.101.195438},
  title={Programmable two-qubit gates in capacitively coupled flopping-mode spin qubits},
  number={19},
  volume={101},
  issn={2469-9950},
  journal={Physical Review B},
  author={Cayao, Jorge and Benito, Mónica and Burkard, Guido},
  note={Article Number: 195438}
}

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