Abstract
It is shown that a finitely additive measure on the projections of a von Neumann algebra without I2 and II1 summands is the restriction of a state. A definition of a physical state is proposed, and it is shown that such a physical state on a simple C*-algebra with unit is a state.
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Communications in Mathematical Physics |
| Vol/bind | 86 |
| Udgave nummer | 4 |
| Sider (fra-til) | 529-538 |
| Antal sider | 10 |
| ISSN | 0010-3616 |
| DOI | |
| Status | Udgivet - dec. 1982 |