Navigation Links
Long distance, top secret messages
Date:10/19/2010

WASHINGTON, Oct. 19 When the military needs to send the key to encrypted data across the world, it can't necessarily rely on today's communication lines, where the message could be covertly intercepted. But physicists at the Georgia Institute of Technology in Atlanta are developing a new, more secure way to send such information across far distances, using existing cables and the laws of quantum mechanics.

Alex Kuzmich and colleagues have built a critical component of a quantum repeater, a device that allows quantum communications -- such as the encryption keys used to encode data transmitted over traditional lines -- to be relayed over larger distances. They will describe this device at the Optical Society's (OSA) 94th annual meeting, Frontiers in Optics (FiO) 2010, at the Rochester Riverside Convention Center in Rochester, N.Y., from Oct. 24-28.

Quantum cryptography is an emerging technology currently used by both military and financial organizations to send information as entangled particles of light. In theory, anyone who tries to tap into this information changes it in a way that reveals their presence.

A quantum repeater is similar to a transformer on a traditional power line. Instead of converting electricity, it regenerates a communication signal to prevent it from degrading over distance. It contains two banks of memory, one to receive an entangled message and a second line to copy it.

Previously, the longest distance over which an encrypted key could be sent was approximately 100 kilometers. The new technology developed by the Georgia Tech team increases 30-fold the amount of time the memory can hold information, which means that series of these devices -- arrayed like Christmas lights on a string -- could reach distances in excess of 1,000 kilometers.

"This is another significant step toward improving quantum information systems based on neutral atoms. For quantum repeaters, most of the basic steps have
'/>"/>

Contact: Lyndsay Basista
lbasista@osa.org
202-416-1930
Optical Society of America
Source:Eurekalert

0

GOOD

Page: 1 2

Related biology technology :

1. Major disease-vector mosquito reveals the secrets of its immune system
2. Feast and famine: MRI reveals secrets of animal anatomy
3. Secrets of a chiral gold nanocluster unveiled
4. Chemical analyses uncover secrets of an ancient amphora
5. Biomoda Board of Directors Names New Corporate Secretary
6. Secrets of insect flight revealed
7. DNA2.0 Unlocks The Secrets Of Optimized Gene Design: Company Identifies Codon Choice Design Principles for Optimal Protein Expression
8. Charging ahead: University of Houston team revealing secrets of electricity-producing materials
9. EnVivo Pharmaceuticals Announces Reversal of Cognitive Deficits in Alzheimers Disease Transgenic Mouse Model With Gamma-Secretase Modulator
10. Former Secretary of Veterans Affairs James Peake to Join the Cellphire Board of Directors
11. AEterna Zentaris Acquires All Assets from Ardana for Growth Hormone Secretagogue Compound, AEZS-130
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/23/2013)... Can economic incentives such as gift cards, ... the public to increase their donations of blood? , ... Business School Assistant Professor Mario Macis says the ... body of recent research that supports their argument, the ... of Science that the World Health Organization and national ...
(Date:5/23/2013)... 23, 2013  Rahal Letterman Lanigan Racing (RLL) and ... stem cell banking and therapeutics, announced today that StemCyte ... Acorn Stairlifts Indy car driven by James ... the IZOD IndyCar 2013 season.   StemCyte, ... support awareness of umbilical cord blood banking and its ...
(Date:5/23/2013)...  Saddleback Memorial Medical Center in Laguna ... on the West Coast to perform a hysterectomy using ... women with a state-of-the-art, minimally invasive approach to gynecological ... , M.D., a highly regarded Orange County ... minimally invasive surgery at Saddleback Memorial, led the surgical ...
(Date:5/23/2013)... May 23, 2013 Z Trim Holdings, Inc. ... to a variety of industries, announced that Chef ... discussion at this year,s National Restaurant Association ("NRA") NRA ... behalf of the Research Chefs Association.  Chef Ryan spoke ... Good, the Bad and the Ugly," joining four other ...
Breaking Biology Technology:Offering Economic Incentives to Attract Blood Donations Should Be Encouraged, Research Team writes in Science 2Offering Economic Incentives to Attract Blood Donations Should Be Encouraged, Research Team writes in Science 3StemCyte, Inc. Joins Rahal Letterman Lanigan Racing As Associate Sponsor Of No. 16 IndyCar Program For James Jakes Beginning With The 97th Indianapolis 500 2StemCyte, Inc. Joins Rahal Letterman Lanigan Racing As Associate Sponsor Of No. 16 IndyCar Program For James Jakes Beginning With The 97th Indianapolis 500 3Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 2Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 3Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 2Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 3
... Pipeline Efforts at 27th Annual J.P. Morgan Healthcare Conference ... (Nasdaq: GHDX ) announced today that it ... 18-gene Oncotype DX(R) colon cancer assay. Utilizing more ... the validation study will use prospectively defined endpoints to ...
... Jan. 12 WaferGen Biosystems,Inc. (OTC Bulletin ... gene,expression, genotyping, cell biology and stem cell ... successfully demonstrated the,performance of the company,s SmartChip(TM) ... the platform,s ongoing alpha testing program. ...
... - Trial conducted by Novartis to evaluate safety and ... with ribavirin in patients with genotypes 2 and 3 ... Sciences, Inc. (Nasdaq: HGSI ) today announced ... trial that will evaluate the safety and efficacy of ...
Cached Biology Technology:Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 2Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 3Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 4Genomic Health Announces Commencement of QUASAR Clinical Validation Study for Oncotype DX(R) Colon Cancer Assay 5WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 2WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 3WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 4WaferGen's SmartChip(TM) System Performance Successfully Demonstrated in Initial Phase of Alpha Testing Program 5Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 2Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 3Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 4Human Genome Sciences Announces Initiation of Phase 2b Trial of Albuferon(R) Dosed Monthly in Chronic Hepatitis C 5
(Date:5/24/2013)... and grow by avoiding detection and destruction by the ... to eliminate cancer cells; however, there are many factors ... Regulatory T cells are immune cells that function to ... the Journal of Clinical Investigation , researchers led ... T cells that infiltrate tumors express proteins that can ...
(Date:5/23/2013)... Frontiers in Plant Science , ... gene content and promoter evolution among grasses , ... of stretches of DNA that undergo little change in ... not code for any proteins. Some of these evolutionarily ... to regulate the expression of other genes or the ...
(Date:5/23/2013)... which estrogen suppresses lipid synthesis in the liver, UC ... treating certain liver diseases. , With this finding, ... long-held views in the field. Study results appear in ... Signaling . , "The dogma in the steroid receptor ... located in the nucleus respond to steroid hormones by ...
Breaking Biology News(10 mins):Frontiers news briefs: May 23 2Frontiers news briefs: May 23 3UCI study reveals new mechanism for estrogen suppression of liver lipid synthesis 2
... WASHINGTON To reduce the risk of another ... oil spill, a new report from the National Academy ... in offshore drilling should take a "system safety" approach ... of operation -- from ensuring the integrity of wells ...
... reporting development of a first-of-its-kind technology that could help ... involving nerve gas and other chemical agents back to ... ingredients for the agent. A report on the technique, ... attacks, appears in ACS, journal Analytical Chemistry . ...
... Athens, Ga. When you cut an apple and ... lemon juice, an antioxidant, and the process slows down. ... the brain as Alzheimer,s disease sets in. The underlying cause ... with the creation of free radicals that cause oxidative stress. ...
Cached Biology News:Industry, regulators should take 'system safety' approach to offshore drilling in aftermath of Deepwater Horizon accident, says new report 2Industry, regulators should take 'system safety' approach to offshore drilling in aftermath of Deepwater Horizon accident, says new report 3Antioxidant has potential in the Alzheimer's fight, UGA researchers find 2
Human GCP-2 is a member of the CXC family of chemokines. It also promotes neutrophil chemotaxis and deganulation. GF063 is an 8.0 kDa protein containing 73 amino acid residues....
... Anti-Matrix Metalloproteinase-2, Hinge Region By immunoblotting the ... protein. It reacts with free MMP-2 or ... buffered aqueous glycerol solution Solution ... 7.4, containing 50% glycerol and 15 mM ...
human Exodus-2 Research Focus: cytokine/growth factor Storage Temperature: -20C Shipping Temperature: 4C...
... exerts its effects by ... receptor, a disulfide-linked heterotetrameric ... Alpha subunits and two ... the following configuration: Beta-Alpha-Alpha-Beta. ...
Biology Products: