Two-qubit couplings of singlet-triplet qubits mediated by one quantum state

We describe high-fidelity entangling gates between singlet-triplet qubits (STQs) which are coupled via one quantum state (QS). The QS can be provided by a quantum dot itself or by another confined system. The orbital energies of the QS are tunable using an electric gate close to the QS, which change...

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Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2014-07, Vol.90 (4), Article 045404
Hauptverfasser:	Mehl, Sebastian, Bluhm, Hendrik, DiVincenzo, David P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Charge Condensed matter Gallium arsenide Gallium arsenides Gates Orbitals Qubits (quantum computing) Thresholds
Online-Zugang:	Volltext
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