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Anisotropic Pauli Spin Blockade of Holes in a GaAs Double Quantum Dot
Daisy Q. Wang, Oleh Klochan, Jo-Tzu Hung +4
Electrically defined semiconductor quantum dots are attractive systems for spin manipulation and quantum information processing. Heavy-holes in both Si and GaAs are promising candi…
Mechanisms for strong anisotropy of in-plane g-factors in hole based quantum point contacts
D. S. Miserev, A. Srinivasan, O. A. Tkachenko +5
In-plane hole g-factors measured in quantum point contacts based on p-type heterostructures strongly depend on the orientation of the magnetic field with respect to the electric cu…
A complete laboratory for transport studies of electron-hole interactions in GaAs/AlGaAs systems
Ugo Siciliani de Cumis, Joanna Waldie, Andrew F. Croxall +5
We present GaAs/AlGaAs double quantum well devices that can operate as both electron-hole (e-h) and hole-hole (h-h) bilayers, with separating barriers as narrow as 5 nm or 7.5 nm.…
Resonance fluorescence from a telecom-wavelength quantum dot
R. Al-Khuzheyri, A. C. Dada, J. Huwer +11
We report on resonance fluorescence from a single quantum dot emitting at telecom wavelengths. We perform high-resolution spectroscopy and observe the Mollow triplet in the Rabi re…
Manifestation of a non-abelian gauge field in a p-type semiconductor system
T. Li, L. A. Yeoh, A. Srinivasan +5
Gauge theories, while describing fundamental interactions in nature, also emerge in a wide variety of physical systems. Abelian gauge fields have been predicted and observed in a n…
Thermoelectric and electrical transport in mesoscopic two-dimensional electron gases
Vijay Narayan, Michael Pepper, David Ritchie
We review some of our recent experimental studies on low-carrier concentration, mesoscopic two-dimensional electron gases (m2DEGs). The m2DEGs show a range of striking characterist…