Navigation Links
Physicists skirt thermal vibration, transfer optical signal via mechanical oscillator
Date:11/15/2012

id, consider a tuning fork:

"If you were able to look at the tuning fork very closely, you would see that it is always vibrating a little bit on its own, just from the thermal motion," said co-author Victor Fiore, a graduate student. "This causes a problem because the noise from the thermal motion can swamp out the signal that we care about."

The Oregon group solved the problem by demonstrating the "dark-mode" approach proposed earlier this year by theoretical physicists from McGill University and the University of California, Merced. By achieving the dark mode, the color-conversion process is immune to thermal noise, even though the conversion is still mediated by the same mechanical oscillator. This approach provides an alternative to cooling the mechanical oscillator to eliminate the noise.

Describing the dark mode is difficult, but co-author Mark C. Kuzyk, another graduate student in Wang's lab, suggests picturing three children sitting on swings, holding hands. "The two outermost kids are the photons (light) of different colors, and the middle child is the mechanical oscillator. When all three children are sitting still, there are no photons or vibrations in the system. If we push one of the swings, all three kids will start moving. In the dark mode approach, we push and pull on the swings in a special way that generates a very particular pattern of swinging.

"As the child on the left hand side moves forward," Kuzyk continued, "the child on the right hand side moves backward, such that the middle child never moves. This is interesting because even though the middle child never moves, she is a necessary part of the system. Without her, there would be no way to couple the two outermost swings."

For applications in a quantum Internet, the next challenge is to demonstrate that this process can work at the level of a single photon and can be implemented on a semiconductor chip, Wang said.

"This fundamental re
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. UCLA physicists report nanotechnology feat with proteins
2. UMass Amherst polymer scientists, physicists develop new way to shape thin gel sheets
3. UCSB Physicists mix 2 lasers to create light at many frequencies
4. University of Florida physicists set new record for graphene solar cell efficiency
5. CU-Boulder physicists use ultrafast lasers to create first tabletop X-ray device
6. University of Utah physicists invent spintronic LED
7. Physicists in Mainz and all around the world cheer the discovery of the Higgs particle
8. New method for enhancing thermal conductivity could cool computer chips, lasers and other devices
9. Magnetic actuation enables nanoscale thermal analysis
10. Lifeline Biotechnologies Receives Patent for Methods to Collect and Analyze Breast Thermal Data to Determine Suspect Conditions
11. Scientists target bacterial transfer of resistance genes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Physicists skirt thermal vibration, transfer optical signal via mechanical oscillator
(Date:9/17/2014)... - Oncothyreon Inc. (NASDAQ: ONTY ) today ... of its Common Stock and Series A Convertible Preferred ... Series A Convertible Preferred Stock is non-voting and convertible ... will be prohibited if, as a result, the holder ... of the Common Stock then outstanding. As part of ...
(Date:9/17/2014)... 17, 2014 A biodegradable polymer ... such as bacteria, fungi, and algae into smaller ... biomass, inorganic compounds, carbon dioxide, and humus in ... base and improved costs, biodegradable polymers are proving ... alternative to conventional polymers. Primary factors that are ...
(Date:9/17/2014)... Intarcia Therapeutics, Inc. today announced the presentation ... cost and predictability of non-adherence in type 2 diabetes ... the European Association for the Study of Diabetes (EASD). ... Ph.D., of Analysis Group, Inc. presented data from the ... to characterize the prevalence of non-adherence and serial non-adherence, ...
(Date:9/17/2014)... Mass. , Sept. 17, 2014 ... a biotechnology company focused on discovering, developing and ... using RNA-targeted technologies, today announced that it has been ... and Trademark Office on its unique delivery system ... ) to phagocytic cells for the treatment of ...
Breaking Biology Technology:Oncothyreon Announces Proposed Public Offerings 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 2Growing Demand for Eco-Friendly Products Drives the Global Biodegradable Polymers Market, According to New Report by Global Industry Analysts, Inc. 3Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 2Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 3Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 4Intarcia Reveals New Insights At EASD Meeting Characterizing The Burden Of Poor Control And Non-Adherence To Anti-Diabetic Therapies 5RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 2RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 3RXi Pharmaceuticals Strengthens Intellectual Property Portfolio 4
... 15, 2011 Generex Biotechnology Corporation ( www.generex.com ... the status of the previously announced spinout of ... ). The Company is in the ... several transaction opportunities, including both shell companies and ...
... Sangamo BioSciences, Inc. (Nasdaq: SGMO ) announced ... provide an overview of the company,s business strategy at ... the UBS 2011 Global Life Sciences Conference which will ... addition, Geoffrey Nichol, M.B., Ch.B., Sangamo,s executive vice president ...
... Aperion Biologics, Inc. announced that it has reached ... Company,s clinical trial of its Z-Lig™ Anterior Cruciate Ligament ... of the knee. The randomized multicenter study commenced in ... provide safety and performance data in the reconstruction of ...
Cached Biology Technology:Generex Provides Update on Spinout of Antigen Express 2Generex Provides Update on Spinout of Antigen Express 3Generex Provides Update on Spinout of Antigen Express 4Sangamo BioSciences Announces Presentation at the 2011 UBS Global Life Sciences Conference 2Aperion Biologics Reaches Midpoint of Enrollment in Z-Lig™ Anterior Cruciate Ligament Reconstruction Medical Device Performance Trial 2
(Date:9/16/2014)... Menopause Society (NAMS) has published its key, evidence-based ... everything from hot flashes to heart disease. The ... for Clinical Care of Midlife Women," was published ... . This is the first, comprehensive set of ... freely available to all clinicians who care for ...
(Date:9/16/2014)... Two Johns Hopkins neuroscientists have discovered the "molecular brakes" ... inner ear cochleas of mice. These "hair cells" translate ... the brain and are interpreted as sounds. If the ... , A summary of the research will be ... Sept. 16. , "The proteins Hey1 and Hey2 act ...
(Date:9/16/2014)... inherit certain traits from our parents that are pre-determined. ... play out by taking certain drugs or better yet, ... team of researchers at the Boston University School of ... research. , Epigenetics regulates gene expression in a ... which prevent permanent mutations or alterations within the gene ...
Breaking Biology News(10 mins):Hey1 and Hey2 ensure inner ear 'hair cells' are made at the right time, in the right place 2Epigenetic drugs: A hope to treat cancer resistance and reduce cancer relapse? 2Epigenetic drugs: A hope to treat cancer resistance and reduce cancer relapse? 3
... world,s top biodiversity hotspot for reptiles and amphibians, according ... from the University of California, Berkeley, Southern Illinois University ... The park, which encompasses lowland Amazonian rain forest, high-altitude ... well known for its huge variety of bird life, ...
... to climate change are being compiled by research groups ... various sources results in different climate projections; hence, the ... arrive at a consensus regarding future climate estimates. ... SIAM Journal on Uncertainty Quantification , authors Matthew ...
... , New Rochelle, NY, February 19, 2014Joseph C. Glorioso, ... devoted much of his research career to developing herpes ... cells. In recognition of his leadership and accomplishments, ... Gene Therapy , a peer-reviewed journal from Mary Ann ...
Cached Biology News:Peru's Manu National Park sets new biodiversity record 2Peru's Manu National Park sets new biodiversity record 3Statistics research could build consensus around climate predictions 2Statistics research could build consensus around climate predictions 3Statistics research could build consensus around climate predictions 4Joseph Glorioso, Ph.D., receives Pioneer Award 2