Coherence-Decoherence Rate Matching in Photosynthetic Quantum Transport
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| Natura: | Recurso digital |
| Lingua: | inglese |
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2026
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| _version_ | 1866902160174743552 |
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| author | Shchevyev, Nikita Sergeyevivch |
| author_facet | Shchevyev, Nikita Sergeyevivch |
| contents | <p>Environment-assisted quantum transport (ENAQT) shows that photosynthetic energy transfer peaks when the dephasing rate matches the inter-site coupling. We identify this as a seam condition R = J_Eτ/ℏ = 1, where the coherence-maintenance rate equals the decoherence rate. For FMO, published values give R = 1.13 (J = 100 cm⁻¹, τ = 60 fs); rate-matching predicts τ = 61 fs from J = 87 cm⁻¹—within 2% of experiment. The seam follows from the Archontology predomain condition H > K, which governs both quantum efficiency and thermodynamic power through the same variable R. A two-failure-mode theorem establishes that the seam is the unique interior optimum: dissolution (K > H) and Anderson localization (H ≫ K) are opposing failure modes pinning the optimum at R = 1. Thermodynamic analysis shows the seam margin (1.459 eV) exceeds zero-reorganization (1.075 eV) by 36%; the ENAQT efficiency gain (0.445 eV) exceeds Marcus dissipation (≤0.061 eV) by a factor of seven. Five cross-species checks confirm R ∈ [0.5, 2.0]. A forward prediction for diatom fucoxanthin-chlorophyll protein gives τ_electronic ≈77 fs from the transport coupling alone; this has not been measured and is testable by two-dimensional electronic spectroscopy.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_20246828 |
| institution | Zenodo |
| language | eng |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Coherence-Decoherence Rate Matching in Photosynthetic Quantum Transport Shchevyev, Nikita Sergeyevivch environment-assisted quantum transport quantum biology FMO complex decoherence photosynthesis quantum thermodynamics rate matching open quantum systems Archontology seam condition Fenna-Matthews-Olson fucoxanthin-chlorophyll protein <p>Environment-assisted quantum transport (ENAQT) shows that photosynthetic energy transfer peaks when the dephasing rate matches the inter-site coupling. We identify this as a seam condition R = J_Eτ/ℏ = 1, where the coherence-maintenance rate equals the decoherence rate. For FMO, published values give R = 1.13 (J = 100 cm⁻¹, τ = 60 fs); rate-matching predicts τ = 61 fs from J = 87 cm⁻¹—within 2% of experiment. The seam follows from the Archontology predomain condition H > K, which governs both quantum efficiency and thermodynamic power through the same variable R. A two-failure-mode theorem establishes that the seam is the unique interior optimum: dissolution (K > H) and Anderson localization (H ≫ K) are opposing failure modes pinning the optimum at R = 1. Thermodynamic analysis shows the seam margin (1.459 eV) exceeds zero-reorganization (1.075 eV) by 36%; the ENAQT efficiency gain (0.445 eV) exceeds Marcus dissipation (≤0.061 eV) by a factor of seven. Five cross-species checks confirm R ∈ [0.5, 2.0]. A forward prediction for diatom fucoxanthin-chlorophyll protein gives τ_electronic ≈77 fs from the transport coupling alone; this has not been measured and is testable by two-dimensional electronic spectroscopy.</p> |
| title | Coherence-Decoherence Rate Matching in Photosynthetic Quantum Transport |
| topic | environment-assisted quantum transport quantum biology FMO complex decoherence photosynthesis quantum thermodynamics rate matching open quantum systems Archontology seam condition Fenna-Matthews-Olson fucoxanthin-chlorophyll protein |
| url | https://doi.org/10.5281/zenodo.20246828 |