4 papers
Whale Casting: Remote mobile streaming humpback whale vocalizations to the world
James P. Crutchfield, Alexandra M. Jurgens
Over several days in early August 2021, while at sea in Chatham Strait, Southeast Alaska, aboard M/Y Blue Pearl, an online twitch.tv stream broadcast in real-time humpback whale vo…
Divergent Predictive States: The Statistical Complexity Dimension of Stationary, Ergodic Hidden Markov Processes
Alexandra M. Jurgens, James P. Crutchfield
Even simply-defined, finite-state generators produce stochastic processes that require tracking an uncountable infinity of probabilistic features for optimal prediction. For proces…
Functional Thermodynamics of Maxwellian Ratchets: Constructing and Deconstructing Patterns, Randomizing and Derandomizing Behaviors
Alexandra M. Jurgens, James P. Crutchfield
Maxwellian ratchets are autonomous, finite-state thermodynamic engines that implement input-output informational transformations. Previous studies of these "demons" focused on how…
Measurement-Induced Randomness and Structure in Controlled Qubit Processes
Ariadna E. Venegas-Li, Alexandra M. Jurgens, James P. Crutchfield
When an experimentalist measures a time series of qubits, the outcomes generate a classical stochastic process. We show that measurement induces high complexity in these processes…