Navigation Links
Untangling the quantum entanglement behind photosynthesis
Date:5/10/2010

orted the first direct evidence that this essentially instantaneous energy transfer was made possible by a remarkably long-lived, wavelike electronic quantum coherence.

Using electronic spectroscopy measurements made on a femtosecond (millionths of a billionth of a second) time-scale, Fleming and his group discovered the existence of "quantum beating" signals, coherent electronic oscillations in both donor and acceptor molecules. These oscillations are generated by the excitation energy from captured solar photons, like the waves formed when stones are tossed into a pond. The wavelike quality of the oscillations enables them to simultaneously sample all the potential energy transfer pathways in the photosynthetic system and choose the most efficient. Subsequent studies by Fleming and his group identified a closely packed pigment-protein complex in the light harvesting portion of the photosynthetic system as the source of coherent oscillations.

"Our results suggested that correlated protein environments surrounding pigment molecules (such as chlorophyll) preserve quantum coherence in photosynthetic complexes, allowing the excitation energy to move coherently in space, which in turn enables highly efficient energy harvesting and trapping in photosynthesis," Fleming says.

In this new study, a reliable model of light harvesting dynamics developed by Ishizaki and Fleming was combined with the quantum information research of Whaley and Sarovar to show that quantum entanglement emerges as the quantum coherence in photosynthesis systems evolves. The focus of their study was the Fenna-Matthews-Olson (FMO) photosynthetic light-harvesting protein, a molecular complex found in green sulfur bacteria that is considered a model system for studying photosynthetic energy transfer because it consists of only seven pigment molecules whose chemistry has been well characterized.

"We found numerical evidence for the existence of entanglement in the FM
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. New book, Untangling the Double Helix, explores enzymes responsible for maintaining genome integrity
2. Researchers set new record for brightness of quantum dots
3. NIBIB invests in quantum research
4. JILA solves problem of quantum dot blinking
5. Quantum weirdness, parallel worlds, dinosaur poop, and the ultimate fate of the universe...
6. Is hybridoma production about to take a quantum leap forward?
7. A gentle touch for better control, a quantum mechanical con, and milestone PRL papers
8. Europe gets together to harness quantum physics
9. Study shows quantum dots can penetrate skin through minor abrasions
10. Strained quantum dots show new optical properties
11. New technique is quantum leap forward in understanding proteins
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Untangling the quantum entanglement behind photosynthesis
(Date:1/22/2015)... EyeLock, Inc. , a market leader of iris-based identity authentication ... to the new role of Senior Vice President of Mobile ... mobile platforms and wearable solutions for EyeLock,s technologies. Gerber brings ... semiconductor industry to his role at EyeLock, with expertise in ...
(Date:12/24/2014)... in December 2014, the 1U™ app has helped ... remember their usernames and passwords through replacing the antiquated system ... people who have struggled to remember usernames and passwords, ... on redefining identity, announced today that it is offering the ...
(Date:12/22/2014)... DUBLIN , Dec. 22, 2014 Research and ... the addition of the "The Global Watermarking ... http://photos.prnewswire.com/prnh/20130307/600769 ... global digital media watermarking and fingerprinting markets. Watermarking ...
Breaking Biology News(10 mins):EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3The Global Watermarking and Fingerprinting Markets 2
... meteorite fragments that fell on a frozen lake in ... life,s handedness why living things only use molecules ... evidence to date that liquid water inside an asteroid ... forms of some common protein amino acids in meteorites. ...
... days following the 2010 Deepwater Horizon oil spill, methane-eating ... the methane that gushed, along with oil, from the ... scientific curiosity: Prior to the oil spill, scientists had ... area. Now researchers at MIT have discovered a ...
... available in German . , Leipzig. Fungi ... threads. However, these networks have surprising functions. Only a few ... (UFZ) discovered that bacteria travel over the fungal threads through ... a highway. Now, together with British colleagues from the University ...
Cached Biology News:NASA and university researchers find a clue to how life turned left 2NASA and university researchers find a clue to how life turned left 3NASA and university researchers find a clue to how life turned left 4NASA and university researchers find a clue to how life turned left 5Newfound gene may help bacteria survive in extreme environments 2Newfound gene may help bacteria survive in extreme environments 3Newfound gene may help bacteria survive in extreme environments 4Contaminant transport in the fungal pipeline 2Contaminant transport in the fungal pipeline 3Contaminant transport in the fungal pipeline 4
(Date:1/23/2015)... Biofertilizers stimulate microbial activities in soil. These microorganisms generate ... activities in the soil or in the rhizosphere. The ... on reducing environmental pollution and on reducing the usage ... the bio fertilizers market with analysis and forecasting of ...
(Date:1/22/2015)... , Jan. 22, 2015  Transwestern | RBJ today announces the ... office space for Shire a leading biopharmaceutical company, at Two ... | RBJ,s Robert Richards , president, and Brian ... for the entire five-floor building at 95 Hayden Ave. ...
(Date:1/22/2015)... Johnston, RI (PRWEB) January 22, 2015 ... State , The growing team of brand-neutral, independent consultants, ... CIO Philip Rogers explained that over the years, his ... including , Moroso, Town of Plainfield, as well as ...
(Date:1/22/2015)... 2015 Controlled Substance Compliance Services (CSCS), ... companies check the legal requirements around using controlled substances ... , As their international operations expand and become ... solutions built as a result of the first phase ...
Breaking Biology Technology:Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 2Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 3Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 4Transwestern | RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Protocol Networks Brings Independent Technology Consulting to the Constitution State 2Global Compliance Service for Controlled Substances to Expand to China 2
... GeoVax Labs, Inc. (OTCQB/OTCBB: GOVX), an Atlanta-based biopharmaceutical ... Human Immunodeficiency Virus (HIV) infections, today announced its financial ... GeoVax reported a net loss of $375,852 ... 30, 2011, compared to $644,666 ($0.04 per share) for ...
... Fla., Nov. 10, 2011 Theravalues, a ... product, impacts positively on the prevention of heart failure ... During the human clinical trial started with the registration ... Hospital Organization Kyoto Medical Center and University of Shizuoka, ...
... MEMPHIS, Tenn., Nov. 10, 2011   ACORN Research ... in personalized medicine and translational research, by offering ... industry and academic research through its partnership with ... ACORN Research is able to provide CRO services ...
Cached Biology Technology:GeoVax Labs, Inc. Announces Nine Month 2011 Financial Results 2GeoVax Labs, Inc. Announces Nine Month 2011 Financial Results 3GeoVax Labs, Inc. Announces Nine Month 2011 Financial Results 4GeoVax Labs, Inc. Announces Nine Month 2011 Financial Results 5Theravalues Confirms Beneficial Effects of Theracurmin™ on Diastolic Function in Hypertensive Patients 2ACORN Research, LLC Announces Partnership with AdeptBio, LLC 2
... Microplate Handler is a high-capacity, plug-and-play ... BioTeks washers, readers and liquid handling ... ultimate flexibility and intuitive and powerful ... to single devices or linking several ...
... rapid analytical to medium scale affinity purification ... vectors. Sufficient reagents are provided for purification ... under native or denaturing conditions. Crude samples ... retains STag fusion proteins. After unbound proteins ...
... ,Components g/500 ml: ,Tryptone ... chloride 2.5 ,Agar 6.0 ,S-Gal ... ,IPTG 0.025 ,Kanamycin 0.0175 ... complete growth medium containing S-Gal ...
Useful for determination of glucose and ATP. Packaging: Package sizes are based on hexokinase units. Preparation Unit Definition: One unit will phosphorylate 1.0 mol of D -glucose per min at pH ...
Biology Products: