Integration of charge sensors for the readout of semiconductor quantum bits (qubits) is required for a realistic realization of scalable quantum computer. Such charge-sensitive devices, however, involve a significant overhead in terms of gates and contact leads, posing an issue for scalability ... More »
The development of sensitive and compact readout tools of quantum states is a central issue in the run to industrial scalability of semiconductor quantum bits (qubits). We employ the gates of industrial silicon Field-Effect Transistors (used as qubits) as radio-frequency resonators integrated in ... More »
Moiré patterns are superlattice structures that appear when two crystals with a lattice mismatch or with a different orientation are superimposed. We have developed a universal classification of all possible periodic Moirés in order to determine their exact crystallographic ... More »
Leti, an institute of CEA Tech, along with Inac, a fundamental research division of CEA, and the University of Grenoble Alpes have achieved the first demonstration of a quantum-dot-based spin qubit using an industry-standard fabrication process. Published in the November 24 issue of Nature ... More »
Researchers from INAC/PHELIQS (CEA Grenoble) and Kavli Institute of Nanoscience (TU Delft, Netherlands) have predicted the occurrence of topological transitions in multi-terminal Josephson junctions. The topology manifests itself in the trans-conductance between two voltage-biased terminals being ... More »
Contact : Romain Maurand
microelectronics industry has shrinked the size of transistors present in our computers and other electronic equipment, arriving to critical sizes on the order of ten nanometers. On the other hand academic researchers have developed a new paradigm for computing based on quantum physics for which ... More »
We have modeled for the first time devices developed at LETI and STMicroelectronics with quantum methods. These simulations have provided important information on the physics of these devices. The industry of microelectronics has constantly sought to reduce the characteristic dimensions of ... More »
Contact : Xavier Jehl
Electron pumps are devices delivering a quantized current when driven at a frequency f: I=Nef, where N is an integer and e the electron charge. Electron pumps capable of delivering a current higher than 100 pA (corresponding to f >600MHz) with sufficient accuracy are likely to become the direct ... More »


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