The authors reformulate optical time using constructor theory, interpreting Fisher information as a distinguishability resource and the Cramer-Rao bound as a statement of task impossibility for delay estimation under specified conditions.
Constructor theory of time
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
Constructor theory asserts that the laws of physics are expressible as specifications of which transformations of physical systems can or cannot be brought about with unbounded accuracy by devices capable of operating in a cycle ('constructors'). Hence, in particular, such specifications cannot refer to time. Thus, laws expressed in constructor-theoretic form automatically avoid the anomalous properties of time in traditional formulations of fundamental theories. But that raises the problem of how they can nevertheless give meaning to duration and dynamics, and thereby be compatible with traditionally formulated laws. Here we show how.
years
2026 2verdicts
UNVERDICTED 2representative citing papers
A review summarizing experimental proposals for testing constructor theory principles and their implications for physics.
citing papers explorer
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Constructor-Theoretic Optical Time: Delay, Phase, and Fisher Distinguishability as Physical Tasks
The authors reformulate optical time using constructor theory, interpreting Fisher information as a distinguishability resource and the Cramer-Rao bound as a statement of task impossibility for delay estimation under specified conditions.
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Tests of constructor theory
A review summarizing experimental proposals for testing constructor theory principles and their implications for physics.