Marton, V.; Sachrajda, A.; Korkusinski, M.; Bogan, A.; Studenikin, S. Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique. Nanomaterials2023, 13, 950.
Marton, V.; Sachrajda, A.; Korkusinski, M.; Bogan, A.; Studenikin, S. Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique. Nanomaterials 2023, 13, 950.
Marton, V.; Sachrajda, A.; Korkusinski, M.; Bogan, A.; Studenikin, S. Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique. Nanomaterials2023, 13, 950.
Marton, V.; Sachrajda, A.; Korkusinski, M.; Bogan, A.; Studenikin, S. Coherence Characteristics of a GaAs Single Heavy-Hole Spin Qubit Using a Modified Single-Shot Latching Readout Technique. Nanomaterials 2023, 13, 950.
Abstract
We present an experimental study of the coherence properties of a single heavy-hole spin qubit formed in one quantum dot of a gated GaAs/AlGaAs double quantum dot device. We use a modified spin-readout latching technique in which the second quantum dot serves both as an auxiliary element for fast spin-dependent readout within a 200ns time window and also as a register for storing the spin-state information. To manipulate the single-spin qubit we apply sequences of microwave bursts of various amplitudes and durations to make Rabi, Ramsey, Hahn-echo, and CPMG measurements. As a result of the qubit manipulation protocols combined with the latching spin readout, we determine and discuss the achieved qubit coherence times: T1, T_Rabi, T2*, and T_CPMG vs microwave excitation amplitude, detuning and additional relevant parameters
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