T
Tessa R. Calhoun
Researcher at University of Tennessee
Publications - 45
Citations - 5031
Tessa R. Calhoun is an academic researcher from University of Tennessee. The author has contributed to research in topics: Spectroscopy & Light-harvesting complex. The author has an hindex of 16, co-authored 42 publications receiving 4618 citations. Previous affiliations of Tessa R. Calhoun include North Dakota State University & University of California, Berkeley.
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Journal ArticleDOI
Evidence for wavelike energy transfer through quantum coherence in photosynthetic systems
Gregory S. Engel,Gregory S. Engel,Tessa R. Calhoun,Tessa R. Calhoun,Elizabeth L. Read,Elizabeth L. Read,Tae Kyu Ahn,Tae Kyu Ahn,Tomáš Mančal,Tomáš Mančal,Tomáš Mančal,Yuan-Chung Cheng,Yuan-Chung Cheng,Robert E. Blankenship,Graham R. Fleming,Graham R. Fleming +15 more
TL;DR: Previous two-dimensional electronic spectroscopy investigations of the FMO bacteriochlorophyll complex are extended, and direct evidence is obtained for remarkably long-lived electronic quantum coherence playing an important part in energy transfer processes within this system is obtained.
Journal ArticleDOI
Quantum coherence and its interplay with protein environments in photosynthetic electronic energy transfer
Akihito Ishizaki,Akihito Ishizaki,Tessa R. Calhoun,Tessa R. Calhoun,Gabriela S. Schlau-Cohen,Gabriela S. Schlau-Cohen,Graham R. Fleming,Graham R. Fleming +7 more
TL;DR: An overview of recent experimental and theoretical investigations of photosynthetic electronic energy transfer paying particular attention to the underlying mechanisms of long-lived quantum coherence and its non-Markovian interplay with the protein environment is provided.
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Quantum Coherence Enabled Determination of the Energy Landscape in Light-Harvesting Complex II
Tessa R. Calhoun,Naomi S. Ginsberg,Gabriela S. Schlau-Cohen,Yuan-Chung Cheng,Matteo Ballottari,Roberto Bassi,Graham R. Fleming +6 more
TL;DR: The observation of quantum coherence using two-dimensional electronic spectroscopy is employed to directly measure the 14 lowest electronic energy levels in light-harvesting complex II (LHCII), the most abundant antenna complex in plants containing approximately 50% of the world's chlorophyll.
Journal ArticleDOI
Dynamic Solvation in Room-Temperature Ionic Liquids
Pramit K. Chowdhury,Mintu Halder,L. Sanders,Tessa R. Calhoun,Jared L. Anderson,Daniel W. Armstrong,Xueyu Song,Jacob W. Petrich +7 more
TL;DR: In this article, the dynamic solvation of the fluorescent probe, coumarin 153, is measured in five room-temperature ionic liquids using different experimental techniques and methods of data analysis.
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Elucidation of the timescales and origins of quantum electronic coherence in LHCII
Gabriela S. Schlau-Cohen,Gabriela S. Schlau-Cohen,Gabriela S. Schlau-Cohen,Akihito Ishizaki,Akihito Ishizaki,Akihito Ishizaki,Tessa R. Calhoun,Tessa R. Calhoun,Tessa R. Calhoun,Naomi S. Ginsberg,Naomi S. Ginsberg,Matteo Ballottari,Roberto Bassi,Graham R. Fleming,Graham R. Fleming +14 more
TL;DR: This work presents a new, direct method to access coherence signals: a coherence-specific polarization sequence, which isolates the excitonic coherence features from the population signals that usually dominate two-dimensional spectra and elucidate coherent dynamics.