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Updated: May 31, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Quantum coherence stabilization in biology via feedback with coherent background fields.
Meisam Ahmadi1, Seyyed Peyman Shariatpanahi2, Javad Shamsi3
1The School of Computer Engineering, Iran University of Science and Technology, Tehran, Iran.
Electromagnetic Biology and Medicine
|May 29, 2026
Summary
Living systems maintain quantum coherence via entropy-dependent feedback, where coherence suppresses decoherence, enabling survival in noisy biological environments. This mechanism stabilizes fragile quantum states through a self-reinforcing loop.
Area of Science:
- Quantum Biology
- Thermodynamics
- Biophysics
Background:
- Living systems operate far from thermodynamic equilibrium, maintaining order despite environmental noise.
- The persistence of quantum coherence in warm, noisy biological environments is a long-standing question.
- Biological processes show quantum coherence, but stabilizing mechanisms are debated.
Purpose of the Study:
- To present a model demonstrating how quantum coherence in open spin systems can be stabilized.
- To investigate the role of entropy-dependent feedback and coherent fields in maintaining coherence.
- To provide a unifying framework for understanding coherence in biological systems.
Main Methods:
- Developed a phenomenological model for open quantum spin ensembles.
- Incorporated entropy-sensitive decoherence suppression and coherence induction.
- Used multipartite Greenberger-Horne-Zeilinger (GHZ) states for simulations.
- Performed numerical simulations to analyze system behavior.
Main Results:
- Demonstrated nonlinear threshold behavior and entropy collapse.
- Observed long-lived quantum coherence despite strong environmental noise.
- Identified a positive feedback loop where coherence stabilizes itself by suppressing decoherence.
- Showcased model compatibility with various coherent field candidates (e.g., ULDM).
Conclusions:
- Quantum coherence in living matter can be stabilized by structured coupling to coherent fields.
- Entropy-sensitive feedback dynamically regulates decoherence, rather than isolation.
- The model offers a general principle for feedback-stabilized coherence in open, noisy systems.
- This framework advances understanding of quantum phenomena in biological physics.
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