Hybrid superconductor–quantum dot devices
Advances in nanofabrication techniques have made it possible to make devices in which
superconducting electrodes are connected to non-superconducting nanostructures such as …
superconducting electrodes are connected to non-superconducting nanostructures such as …
Electronic structures and unusually robust bandgap in an ultrahigh-mobility layered oxide semiconductor, Bi2O2Se
Semiconductors are essential materials that affect our everyday life in the modern world.
Two-dimensional semiconductors with high mobility and moderate bandgap are particularly …
Two-dimensional semiconductors with high mobility and moderate bandgap are particularly …
Theory of the nonreciprocal Josephson effect
K Misaki, N Nagaosa - Physical Review B, 2021 - APS
The heterojunction between different materials often exhibits a rectifying effect; eg, pn
junction is used for diode. On the other hand, the Josephson junction between two different …
junction is used for diode. On the other hand, the Josephson junction between two different …
Magnitude and Spatial Distribution Control of the Supercurrent in Bi2O2Se-Based Josephson Junction
J Ying, J He, G Yang, M Liu, Z Lyu, X Zhang, H Liu… - Nano Letters, 2020 - ACS Publications
Many proposals for exploring topological quantum computation are based on
superconducting quantum devices constructed on materials with strong spin–orbit coupling …
superconducting quantum devices constructed on materials with strong spin–orbit coupling …
Quantum phase slips in a resonant Josephson junction
We investigate the consequences of resonant tunneling of Cooper pairs on the quantum
phase slips occurring in a Josephson junction. The amplitude for quantum tunneling under …
phase slips occurring in a Josephson junction. The amplitude for quantum tunneling under …
Photonic cross-noise spectroscopy of Majorana bound states
L Bittermann, F Dominguez, P Recher - Physical Review B, 2024 - APS
We propose a route to detect Majorana bound states (MBSs) by coupling a topological
superconductor to quantum dots (QDs) in apnp junction. Here two MBSs are coherently …
superconductor to quantum dots (QDs) in apnp junction. Here two MBSs are coherently …
Signatures of nonlocal Cooper-pair transport and of a singlet-triplet transition in the critical current of a double-quantum-dot Josephson junction
We study the critical Josephson current flowing through a double quantum dot weakly
coupled to two superconducting leads. We use analytical as well as numerical methods to …
coupled to two superconducting leads. We use analytical as well as numerical methods to …
Voltage staircase in a current-biased quantum-dot Josephson junction
We calculate the current-voltage (IV) characteristic of a Josephson junction containing a
resonant level in the weakly coupled regime (resonance width small compared to the …
resonant level in the weakly coupled regime (resonance width small compared to the …
Cooper-pair-based photon entanglement without isolated emitters
We show that the recombination of Cooper pairs in semiconductors can be used as a natural
source of polarization-entangled photons, making use of the inherent angular momentum …
source of polarization-entangled photons, making use of the inherent angular momentum …
Subradiant split Cooper pairs
We suggest a way to characterize the coherence of the split Cooper pairs emitted by a
double-quantum-dot based Cooper pair splitter (CPS), by studying the radiative response of …
double-quantum-dot based Cooper pair splitter (CPS), by studying the radiative response of …