A Synthetic Two-Spin Quantum Bit: g-Engineered Exchange-Coupled Biradical Designed for Controlled-NOT Gate Operations (pages 9860–9864)
Dr. Shigeaki Nakazawa, Dr. Shinsuke Nishida, Dr. Tomoaki Ise, Dr. Tomohiro Yoshino, Dr. Nobuyuki Mori, Dr. Robabeh D. Rahimi, Prof. Dr. Kazunobu Sato, Prof. Dr. Yasushi Morita, Dr. Kazuo Toyota, Prof. Dr. Daisuke Shiomi, Prof. Dr. Masahiro Kitagawa, Dr. Hideyuki Hara, Dr. Patrick Carl, Dr. Peter Höfer and Prof. Dr. Takeji Takui
Article first published online: 31 AUG 2012 | DOI: 10.1002/anie.201204489
A quantum gate: A system of two coupled electron spins that is useful for simple quantum computing operations has been prepared by synthesis of a biradical 1 and co-crystallization with an isomorphous host molecule. The two weakly exchange-coupled quantum bits (target qubit blue and control qubit red) span four electron spin states. The electron spin transition is denoted by two black arrows.