Seminarium Fizyki Politechniki Wrocławskiej
PWr, bud. A1, sala 322
Towards scalable quantum computer based on silicon quantum dots
dr hab. Łukasz Cywiński
Zespół Zastosowań Podstaw Teorii Kwantowej w Zakładzie Fizyki Teoretycznej IF PAN
Classical computers are made from semiconductors, but semiconductor-based architectures for quantum computers are still less developed than those based on superconducting circuits, trapped ions, or neutral atoms. I will try to convince you that there are good reasons to still pursue the "semiconductor path" to quantum computers and discuss challenges that need to be overcome on this path. I will also discuss what kinds of interesting physical problems from solid state physics and open quantum system physics one can grapple with, while contributing to a somewhat "engineering-like" task of building a scalable quantum computer. Special attention will be given to recent progress of coherent shuttling of spin qubits over distances of hundreds of nanometers. Achieving such shuttling over ~10 micron distance will clear one major obstacle for scalability of quantum dot based quantum computers.
