6 papers
Non-equilibrium transport reveals energy level degeneracy
Artem O. Denisov, Christoph Adam, Hadrien Duprez +7
We demonstrate a method to determine energy level degeneracies using non-equilibrium electronic transport through voltage-biased quantum dots. We establish the general validity of…
Entropy spectroscopy of a bilayer graphene quantum dot
Christoph Adam, Hadrien Duprez, Natalie Lehmann +13
We measure the entropy change of charge transitions in an electrostatically defined quantum dot in bilayer graphene. Entropy provides insights into the equilibrium thermodynamic pr…
Tunable spin-orbit splitting in bilayer graphene/WSe quantum devices
Jonas D. Gerber, Efe Ersoy, Michele Masseroni +14
Bilayer graphene (BLG)-based quantum devices represent a promising platform for emerging technologies, such as quantum computing and spintronics. However, their intrinsically weak…
The carbon nanotube gatemon qubit
H. Riechert, S. Annabi, A. Peugeot +8
Gate-tunable transmon qubits are based on quantum conductors used as weak links within hybrid Josephson junctions. These gatemons have been implemented in just a handful of systems…
Spin-Valley Protected Kramers Pair in Bilayer Graphene
Artem O. Denisov, Veronika Reckova, Solenn Cances +11
The intrinsic valley degree of freedom makes bilayer graphene (BLG) a unique platform for semiconductor qubits. The single-carrier quantum dot (QD) ground state exhibits a two-fold…
Spin-valley locked excited states spectroscopy in a one-particle bilayer graphene quantum dot
Hadrien Duprez, Solenn Cances, Andraz Omahen +12
Current semiconductor qubits rely either on the spin or on the charge degree of freedom to encode quantum information. By contrast, in bilayer graphene the valley degree of freedom…