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 |
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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 |