量子生物學是利用量子理論來研究生命科學的一門學科。該學科包含利用量子力學研究生物過程和分子的動態結構。利用量子生物學研究量子水平的分子動態結構和能量轉移，如果所得結果與宏觀的生物學現象相吻合且很難用其他學科的研究重複，則這一研究結果較為可信。 量子生物化學和光合過程的量子研究已得到了可核查的重要的結果。尤其是光合作用中，對於俘獲光子後發生的分步的、對質子的量子式釋放，利用量子生物學的理論，已獲得顯著的研究進展（相關理論涉及到較為複雜的光系統 II）。此外，實驗和理論的發現都支援酶促反應中包含量子穿隧機制。將能量轉化為化學能（可用於化學轉化）的生物學過程在實質上都是量子力學過程。這些過程包含化學反應、光俘獲、電子激發態的形成、激發能的轉移和化學過程（如光合作用及細胞呼吸）中電子及質子（氫離子）的轉移 Quantum Biology University of Illinois at UrbanaChampaign Theoretical and Computational Biophysics Group httpwwwksuiuceduResearchquantum_biology 。量子生物學以量子力學效應為根據，藉助數學計算，對生物學相互作用進行模擬 httpwwwsciencedailycomreleases200701070116133617htm Science Daily Quantum Biology Powerful Computer Models Reveal Key Biological Mechanism Retrieved Oct 14 2007。奧地利出生的量子物理學家和數理生物學家埃爾溫薛定諤早在 1946 年就提出了用量子理論研究遺傳系統的需求，理論生物學家羅伯特羅森在 1961 年接著給出了一份詳細、正式的研究量子遺傳學的辦法。在這方面的一個仍未解決的存在爭議的問題是：量子效應在生物系統中的非平凡 通用角色（即不受限於分子性質）究竟是什麼？HM Wiseman J Eisert Nontrivial quantum effects in biology A skeptical physicists view arXiv07051232v2 physicsgenph Davies PCDoes quantum mechanics play a nontrivial role in life Biosystems 2004 Dec78 136979Ogryzko VV Erwin Schrödinger Francis Crick and epigenetic stabilityBiol Direct 2008 Apr 17315 然而，新近關於轉錄的研究與轉錄酶對於相干態雙鏈 DNA 的量子資訊處理是一致的 Cooper WGEvidence for transcriptase quantum processing implies entanglement and decoherence of superposition proton states BioSystems 2009 Aug 977389doi101016jbiosystems200904010Cooper WG Necessity of quantum coherence to account for the spectrum of timedependent mutations exhibited by bacteriophage T4 Biochem Genet 2009 Oct doi101007s1052800992938。 研究內容 相關量子過程被研究的生物學現象主要包括對輻射的頻率特異性吸收（出現在光合作用和視覺系統等內）、化學能到機械能的轉化、動物的磁感應及許多細胞過程中的布朗馬達。該領域還在積極地研究磁場及鳥類導航的量子分析 httprodgersorgukresearch Chris Rodgers The Spin Chemistry of Bird Navigation 2005 並可能為許多生物體的晝夜節律（生理節律）的研究提供線索 httpwwwsciencedailycomreleases200708070827174303htm Math Model For Circadian Rhythm Created ScienceDaily August 30 2007。 最近的研究已經確定了在光合作用的光收穫階段，不同的色素的激發態之間的量子相干性和糾纏。儘管這一階段的光合作用效率非常高，但是目前仍不清楚這些量子效應究竟如何，或者是否是生物學上相關的。 參見 時間生物學 晝夜節律 羅傑彭羅斯 錢百敦 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University of Illinois at UrbanaChampaign The Spooky World of Quantum Biology 量子力學解釋光合作用效率 Category 生物物理學 Category 量子力學