报告题目
Qubits Based on Liquid Light: A Polariton Platform For Quantum Computation
报告人
Professor Alexey Kavokin
报告时间
专家简介
Alexey received his master degree in physics with honor from St-Petersburg State Technical University and Ph.D in Physical and Mathematical Sciences at A.F. Ioffe Institute, Russian Academy of Sciences in St Petersburg. After a one-year postdoctoral research period at Università degli Studi di Roma II “Tor Vergata”, Italie Dipartimento di Ingegneria Elettronica, he was nominated as the chairholder, Marie Curie Chair of Excellence “Polariton devices”. From 1998 to 2005, he was the university Professor at Université “Blaise Pascal” Clermont-Ferrand II in France. From 2005, he was the chair of Nanoscience and Photonics and professor of Physics and Astronomy School in University of Southampton. Prof. Kavokin accepted the offer as the director of the International Center of Polaritonics and chair professor in Westlake University In June 2018. In 2020, he received International Quantum Device Award “for the prediction of the Bose- Einstein condensation of exciton-polaritons at the room temperature that led to the realization of polariton lasers.”
报告摘要
Superconducting flux qubits are based on a superposition of clock-wise and anti-clockwise currents formed by millions of Cooper pairs. In order to excite the system in a superposition state, the half-quantum flux of magnetic field is passed through the superconducting circuit containing one or several Josephson junctions. We argue that a valuable alternative to superconducting flux qubits may be offered by qubits based on superfluid currents of quasiparticles of liquid light: exciton-polaritons, propagating in plane of semiconductor microcavities Circular currents of exciton-polaritons mimic the superconducting flux qubits being composed by a large number of bosonic quasiparticles that compose a single quantum state of a many-body condensate.
