Simulations of realistic SiGe/Ge gate-defined hole quantum dots identify g-factor modulation, geometry-induced dephasing sweet spots, and B^{-9} phonon relaxation scaling via asymmetric confinement.
Recent advances in hole-spin qubits
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Magneto-PL spectroscopy on Ge0.88Sn0.12/Si0.02Ge0.89Sn0.09 double quantum well reveals diamagnetic shift, Landau quantization, and Zeeman splitting yielding g-factor ~2 and reduced mass ~0.04 me, consistent with heavy-hole excitons.
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Design and Optimization of Spin Dynamics in Ge Quantum Dots: g-Factor Modulation, Geometry-Induced Dephasing Sweet Spots, and Phonon-Induced Relaxation
Simulations of realistic SiGe/Ge gate-defined hole quantum dots identify g-factor modulation, geometry-induced dephasing sweet spots, and B^{-9} phonon relaxation scaling via asymmetric confinement.