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Ultrastrong coupling of the cyclotron transition of a two-dimensional electron gas to a THz metamaterial
Giacomo Scalari, Curdin Maissen, Dana Turcinková +8
Artificial cavity photon resonators with ultrastrong light-matter interactions are attracting interest both in semiconductor and superconducting systems, due to the possibility of…
Imaging the lateral shift of a quantum-point contact using scanning-gate microscopy
S. Schnez, C. Rössler, T. Ihn +3
We perform scanning-gate microscopy on a quantum-point contact. It is defined in a high-mobility two-dimensional electron gas of an AlGaAs/GaAs heterostructure, giving rise to a we…
Transport Properties of Clean Quantum Point Contacts
C. Rössler, S. Baer, E. de Wiljes +5
Quantum point contacts are fundamental building blocks for mesoscopic transport experiments and play an important role in recent interference- and fractional quantum Hall experimen…