講演題目：　Dissipative Quantum Brain Dynamics

講　師　：　Prof. Giuseppe Vitiello
　　　　　（Dipartimento di Fisica, Universita' di Salerno, Italy）

日　時：　平成11年6月2日 (水) 16:30-17:30
場　所：　北海道大学理学部２号館大学院講義室（2-2-11）

要　旨　：
The quantum model of brain has been extended to dissipative dynamics in order to solve the problem of memory capacity. This gave rise to an interesting framework to study consciousness related mechanisms. The brain is modeled as an open system interacting with the environment and the information storage is represented through the dynamical generation of collective modes under external stimuli. We find different life-times for modes of different momentum. This suggests interesting features related with memory persistence time. Also stimulated by the increasing interest in quantum features of neural net dynamics, either in connection with information processing in biological systems, or in relation with a computational strategy based on the system quantum evolution　(quantum computation), we study the classical limit of the dissipative quantum brain dynamics in order to exhibit a link with neural net dynamics.

世話人　 石川健三　（北海道大学大学院理学研究科）
(706-2688、ishikawa@particle.sci.hokudai.ac.jp)
北海道大学・大学院理学研究科・物理学専攻