Complete Readout of Two-Electron Spin States in a Double Quantum Dot
Abstrak
We propose and demonstrate complete spin state readout of a two-electron system in a double quantum dot probed by an electrometer. The protocol is based on repetitive single-shot measurements using Pauli spin blockade and our ability to tune on fast timescales the detuning and the interdot tunnel coupling between the GHz and sub-Hz regime. A sequence of three distinct manipulations and measurements allows establishing if the spins are in S, T_{0}, T_{+}, or T_{−} state. This work points at a procedure to reduce the overhead for spin readout, an important challenge for scaling up spin-qubit platforms.
Topik & Kata Kunci
Penulis (12)
Martin Nurizzo
Baptiste Jadot
Pierre-André Mortemousque
Vivien Thiney
Emmanuel Chanrion
David Niegemann
Matthieu Dartiailh
Arne Ludwig
Andreas D. Wieck
Christopher Bäuerle
Matias Urdampilleta
Tristan Meunier
Akses Cepat
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- 2023
- Sumber Database
- DOAJ
- DOI
- 10.1103/PRXQuantum.4.010329
- Akses
- Open Access ✓