KTH Royal Institute of Technology, Uppsala University
Chiral Molecular Platforms for Spin-Selective Exchange: A Seed for Molecular Qubits
WACQT-WISE
Open
Research question
Recent discoveries in chiral-induced spin selectivity (CISS) show that chiral molecules can generate spin-polarized charge transport at room temperature without magnetic fields, suggesting a new route to spin initialization. This project investigates whether chirality can control spin generation in donor–bridge–acceptor systems. It focuses on one-electron transfer forming radical pairs and two-electron Dexter transfer producing triplet states. While CISS is known for electron transfer, its role in Dexter exchange is unknown.
Through a combined theory and experiment Chiral Molecular Platforms for Spin-Selective Exchange: a seed for molecular qubits will model spin dynamics and test them using synthesized chiral molecules with ultrafast spectroscopy and EPR. The goal is to establish whether molecular structure alone en ables field-free spin control and to define design principles for quantum components.
Sustainability aspects
Molecular systems could replace energy-intensive superconducting qubits.
They use abundant, low-toxicity elements, may be biocompatible, and can operate near room temperature.
Their properties are highly tunable through chemistry, enabling more sustainable quantum technologies.
Contact
KTH Royal Institute of Technology
Nanna Holmgaard List
Assistant Professor
nalist@kth.se
Uppsala University
Victor Gray
Researcher
victor.gray@kemi.uu.se