Monday, June 24, 2013

1306.5206 (Eugenio Bianchi et al.)

The boundary is mixed    [PDF]

Eugenio Bianchi, Hal M. Haggard, Carlo Rovelli
We show that Oeckl's boundary formalism incorporates quantum statistical mechanics naturally, and we formulate general-covariant quantum statistical mechanics in this language. We illustrate the formalism by showing how it accounts for the Unruh effect. We observe that the distinction between pure and mixed states weakens in the general covariant context, and surmise that local gravitational processes are indivisibly statistical with no possible quantal versus probabilistic distinction.
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