Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session N00: Poster Session II (11:30am-2:30pm CST)
11:30 AM,
Wednesday, March 6, 2024
Room: Hall BC
Sponsoring
Unit:
APS/SPS
Abstract: N00.00204 : Increasing free-energy gain on co-evolving qubit networks*
Presenter:
Unnati Akhouri
(The Pennsylvania State University)
Author:
Unnati Akhouri
(The Pennsylvania State University)
We study a closed, co-evolving network of twelve qubits with no external sources or sinks for energy, heat, or work that allows for high free-energy subsystems to form and persist. Sets of subsystems are randomly selected and undergo simultaneous evolution. We find that a restricted network and an inhomogeneous distribution of initial states lead to subsystems with longer intervals of high free energy. Additionally, we find that subsystems in the same environment with and without subsystem-environment correlation lead to different thermodynamic outcomes. We derive the phase-covariant dynamical maps that describe the evolution of subsystems and present bounds on the map parameters given by the information flow on the qubit network. To conclude, we present a class of dynamical maps that induce persistent high free energy states of the subsystem.
*This research was funded by the Department of Energy grant number DE-SC0019515 and DE-SC0020360
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