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4 papers · 2 filters
Universal joint-measurement uncertainty relation for error bars
Paul Busch, David B. Pearson
We formulate and prove a new, universally valid uncertainty relation for the necessary errors bar widths in any approximate joint measurement of position and momentum.
Quantum energy inequalities and local covariance II: Categorical formulation
Christopher J. Fewster
We formulate Quantum Energy Inequalities (QEIs) in the framework of locally covariant quantum field theory developed by Brunetti, Fredenhagen and Verch, which is based on notions t…
Integrable Models From Twisted Half Loop Algebras
Nicolas Crampe, Charles A. S. Young
This paper is devoted to the construction of new integrable quantum mechanical models based on certain subalgebras of the half loop algebra of gl(N). Various results about these su…
Quantum Energy Inequalities and local covariance I: Globally hyperbolic spacetimes
Christopher J. Fewster, Michael J. Pfenning
We begin a systematic study of Quantum Energy Inequalities (QEIs) in relation to local covariance. We define notions of locally covariant QEIs of both 'absolute' and 'difference' t…