Séminaire : Christina Knapp

Christina Knapp, University of California Santa Barbara Topological Quantum Computing with Majorana Zero Modes Experiments over the past decade have shown increasingly convincing evidence for the existence of Majorana zero modes (MZMs) at the ends of a topological superconducting wire. Storing quantum information non-locally in the joint state of pairs of MZMs is a promising approach towards topological quantum computing. In this talk, I will discuss a proposal for scalable Majorana-based quantum computing architectures that are both testable in near-term devices and promising for large scale quantum computing [1]. I will first explain the topological protection of these qubits and their operation using a measurement-based protocol. I will then discuss qubit dephasing from finite MZM hybridization [2]. Finally, I will touch on fault tolerance implications of the dominant error sources [3]. References: [1] PRB 95 235305 (2017) arXiv:1610.05289 [2] PRB 97 125404 (2018) arXiv:1711.03968 [3] Quantum 2 88 (2018) arXiv: 1806.01275