Maintaining coherence in resonant plasma and hybrid quantum
systems remains a central challenge due to phase drift, environmental coupling,
and entropy production. In this work, we investigate an active coherence
locking framework for a plasma-based resonator using feedback-mediated phase
control, auxiliary scalar field coupling, and entropy-aware regulation. The
present study focuses explicitly on classical phase coherence, defined here as
sustained phase synchronisation between coupled oscillatory degrees of freedom,
while treating quantum coherence as a long-term target rather than a
demonstrated property of the modelled system.
A phenomenological scalar field is introduced as an
auxiliary control channel that mediates phase alignment between resonant plasma
modes, while entropy flow is monitored and regulated to suppress destabilising
fluctuations. Using time-resolved numerical simulations, we demonstrate that
active feedback can rapidly drive the system into a stable phase-locked regime
and maintain coherence within defined operational bounds. A critical
instability threshold (“tearing threshold”) is identified, beyond which
feedback control fails, and coherence degrades.
While the underlying plasma dynamics are treated in a
classical or semiclassical regime, the control architecture is motivated by
concepts from quantum feedback and coherence preservation. The results
establish a classical coherence-stabilisation platform that may serve as a
precursor to experimentally testable strategies for coherence preservation in
more explicitly quantum systems. This work, therefore, provides a controlled
bridge between classical resonant stabilisation and future quantum-coherent
implementations.
Author(s) Details
Derrick Covington
Department of Veterans Affairs, United States.
Please see the book here :- https://doi.org/10.9734/bpi/nhstc/v9/6896
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