Navigation Links
Physicists at UC Santa Barbara make discovery in quantum mechanics
Date:9/23/2009

(Santa Barbara, Calif.) Physicists at UC Santa Barbara have made an important advance in quantum mechanics using a superconducting electrical circuit. The finding is reported in this week's issue of the journal Nature.

The researchers showed that they could detect the quantum correlations in the results of measurements of entangled quantum bits, using a superconducting electrical circuit. The correlations are stronger than can be obtained using classical (non-quantum mechanical) physics, and according to the physicists, this illustrates that the oddities of quantum mechanics clearly extend to macroscopic systems. The work is part of an ongoing collaboration between the UCSB laboratories of John Martinis and Andrew Cleland.

The results of measurements in quantum mechanics are intrinsically unpredictable, according to the theory of quantum mechanics, and yet still contain very strong correlations, in contradiction with classical physics. In particular, measurements of "entangled states," such as a pair of particles with opposite spins, allow stringent tests of the predicted discrepancy between quantum and classical physics, as described by the "Bell inequalities." Measuring such a discrepancy is known as a "Bell violation."

According to quantum theory, Bell violations should be detectable using "qubits," superconducting quantum bits, but measuring these violations is technologically challenging. Martinis, Cleland, and their colleagues have overcome these challenges, and report a clear violation of Bell's inequality with two entangled superconducting qubits. Thus, they have demonstrated that this macroscopic electrical circuit is a quantum system.

The measurement of a Bell violation in a superconducting circuit was recently stated to be the next primary challenge for the superconducting qubit community, according to Martinis.

Martinis said: "This experiment has met this challenge, achieved by performing a very d
'/>"/>

Contact: Gail Gallessich
gail.g@ia.ucsb.edu
805-893-7220
University of California - Santa Barbara
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Physicists pin down spin of surface atoms
2. Sheet of carbon atoms acts like a billiard table, physicists find
3. Sheet of carbon atoms acts like a billiard table, physicists find
4. Physicists discover gold can be magnetic on the nanoscale
5. Physicists discover how fundamental particles lose track of quantum mechanical properties
6. UM physicists show electrons can travel over 100 times faster in graphene than in silicon
7. Physicists saved from drowning in complexities of wetting theory
8. New unifying theory of lasers advanced by physicists
9. Discovery by UC Riverside physicists could enable development of faster computers
10. UBC physicists develop impossible technique to study and develop superconductors
11. Physicists tweak quantum force, reducing barrier to tiny devices
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/17/2014)... , Sept. 17, 2014  MiMedx Group, Inc. ... processor and marketer of patent protected regenerative biomaterials ... today the publication of another peer-reviewed clinical study.    ... A Multi-center Randomized Controlled Clinical Trial Evaluating the ... Membrane Allografts and Multi-layer Compression Therapy vs. Multi-layer ...
(Date:9/17/2014)... Terracon Corporation has announced the introduction of a ... This addition to the company’s industry-leading line of custom ... available in 125 or 250 gallon capacities. It ... or less. , The new pre-engineered TerraPure tank offers ... TerraPure tank line – plus quick turnaround. An ...
(Date:9/17/2014)... Calif. , Sept. 17, 2014 ... molecular diagnostics company pioneering the field of molecular cytology, ... chief operating officer. Mr. Hall joined Veracyte ... company,s commercial entry into endocrinology. Since 2012, he has ... well as managed care and billing functions. As chief ...
(Date:9/17/2014)... , September 17, 2014 ... of action from a truly novel class ... MGB Biopharma, a biopharmaceutical company developing ... today that it has secured £4.0m ($6.4m) ... antibacterial, MGB-BP-3, against a range of Gram-positive ...
Breaking Biology Technology:MiMedx Multi-Center Randomized, Controlled VLU Clinical Study Published In Peer-Reviewed Journal 2MiMedx Multi-Center Randomized, Controlled VLU Clinical Study Published In Peer-Reviewed Journal 3MiMedx Multi-Center Randomized, Controlled VLU Clinical Study Published In Peer-Reviewed Journal 4Terracon Introduces Pre-Engineered TerraPure® Tank for Ultrapure Water Applications 2Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 2Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 3Veracyte, Inc. Announces Promotion of Christopher M. Hall To Chief Operating Officer 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 2MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 3MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 4MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 5MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 6MGB Biopharma Secures £4.0m ($6.4m) to Advance its Novel Lead Antibacterial, MGB-BP-3, into Clinical Development 7
... Allows Accurate Marketing Claims Designed with Input from,Entire ... nation,s leading livestock,cloning companies announced today a tracking ... allow food companies to identify cloned animals,when they ... program was developed through extensive cooperative discussions,over the ...
... MATEO, Calif., Dec. 19 BioForm Medical,Inc. (Nasdaq: ... will present a company overview at the upcoming 26th ... BioForm,Medical,s presentation will take place on Monday, January 7th, ... Westin St. Francis Hotel in San Francisco,CA., A ...
... Holdings, Inc. (OTC,Bulletin Board: HTWO) announced today that ... Mirant Energy Trading LLC, a subsidiary of Mirant ... biofuel technology in utility,scale power generation applications., ... biofuel for a gas,turbine test program that will ...
Cached Biology Technology:Top U.S. Cloning Companies Announce New System to Track Cloned Livestock 2BioForm Medical to Present at the 2008 JPMorgan Healthcare Conference on January 7, 2008 2H2Diesel Holdings Announces Test Burn Agreement With Mirant Corp. 2H2Diesel Holdings Announces Test Burn Agreement With Mirant Corp. 3
(Date:9/16/2014)... fall marks a new school year, a new football ... Space Station. In September, SpaceX,s Dragon spacecraft is scheduled ... and investigations as part of the company,s fourth contracted ... will be the third suite of research investigations sponsored ... Space (CASIS). With the role of managing the U.S. ...
(Date:9/16/2014)... (KXL) would likely increase oil sands extraction, according to ... non-profit organization Near Zero. The results are detailed in ... both supporters and opponents of the pipeline. ... to significantly higher greenhouse gas emissions, with the exact ... "This report examines three main scenarios discussed by participants ...
(Date:9/16/2014)... votes for independence later this week, its Government could ... that fracking is necessary, research has revealed. , The ... public perception of shale gas extraction in the UK ... north of the border are the least supportive of ... in the University,s School of Geography, said: "The clear ...
Breaking Biology News(10 mins):CASIS research set for launch aboard SpaceX mission to space station 2CASIS research set for launch aboard SpaceX mission to space station 3Keystone XL would likely raise oil sands production and greenhouse gas emissions 2Scottish people most sceptical on fracking, survey shows 2Scottish people most sceptical on fracking, survey shows 3
... Medicine and University of Crete School of Medicine researchers ... a molecular mechanism that dynamically alters the strength of ... the development of drug therapies for the cognitive deficits ... bipolar disorder, or attention deficit hyperactivity disorder (ADHD). ...
... novel gene mutation that causes X-linked mental retardation for ... to an article to be published electronically on Tuesday, ... Genetics. , Investigators F. Lucy Raymond (Cambridge Institute ... Patrick S. Tarpey (Wellcome Trust Sanger Institute, Hixton, UK) ...
... the University of California, San Diego and the University ... of estimated plant species richness. Covering several hundred thousand ... most extensive map of the distribution of biodiversity on ... study published in this week's early online issue of ...
Cached Biology News:Brain networks strengthened by closing ion channels 2Brain networks strengthened by closing ion channels 3Severe mental retardation gene mutation identified 2Biologists produce global map of plant biodiversity 2
Request Info...
Limit of detection: <5 pg/ml...
Request Info...
... the premium quality siRNAs you need for ... be readily ordered online by providing either ... providing the sense and antisense siRNA sequences. ... Silencer Pre-designed siRNAs, which are already designed ...
Biology Products: