Navigation Links
Raising the prospects for quantum levitation
Date:4/18/2012

More than half-a-century ago, the Dutch theoretical physicist Hendrik Casimir calculated that two mirrors placed facing each other in a vacuum would attract. The mysterious force arises from the energy of virtual particles flitting into and out of existence, as described by quantum theory. Now Norio Inui, a scientist from the University of Hyogo in Japan, has predicted that in certain circumstances a reversal in the direction of the so-called Casimir force would be enough to levitate an extremely thin plate. His calculations are published in the American Institute of Physics' (AIP) Journal of Applied Physics.

The Casimir force pushes identical plates together, but changes in the geometry and material properties of one of the plates can reverse the direction of the force. Inui calculated that a nanometer-thick plate made from a material called yttrium iron garnet (YIG) could hover half a micrometer above a gold plate. One key finding is that the repulsive force increases as the YIG plate gets thinner. This is convenient since the weight of the plate, and hence the magnitude of the force needed to levitate it, shrinks in tandem with the thickness. Right now the levitating plates exist solely in the theoretical realm. As a next step, many key assumptions in the calculations will need to be experimentally tested. If the models stand up to further scrutiny, possible applications could include levitating the gyroscopes in micro-electro-mechanical systems (MEMS) and keeping the various components of nanomachines from sticking together.


'/>"/>

Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics
Source:Eurekalert

Page: 1

Related biology technology :

1. Sanovas CEO Larry Gerrans Featured at BayBios Fundraising in Troubled Times
2. Biocartis Completes EUR 71 Million (USD 100 Million) Series C Fund Raising
3. Creabilis Raises €15M ($20M) in Series B Fundraising Round
4. FightSMA Launches Gene Therapy Fundraising Campaign: “Realizing the Dream”
5. Raising Awareness of Rare Diseases, Anson Group Announces Sponsorship of Rare Disease Day
6. Heptares Secures GBP21 Million in Series A Fund Raising to Accelerate Development of Pipeline of Small Molecules Against High-Value GPCR Drug Targets
7. Volatile Economy / Fundraising Challenges Encourage Business Combinations Among Biotech Companies According to New Survey from CPA Firm Rothstein Kass
8. Novagali Pharma Completes a EUR15 Million Fund Raising
9. China Business Knowledge Launches “China Prospects Forum” -- Dec. 9, 2009, New York City
10. Quantum computer built inside a diamond
11. Quantum control protocols could lead to more accurate, larger scale quantum computations
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/12/2017)... ... October 12, 2017 , ... AMRI, a ... biotechnology industries to improve patient outcomes and quality of life, will now be ... are being attributed to new regulatory requirements for all new drug products, including ...
(Date:10/11/2017)... ... , ... Personal eye wash is a basic first aid supply for any work environment, but ... do you rinse first if a dangerous substance enters both eyes? It’s one less decision, ... its unique dual eye piece. , “Whether its dirt and debris, or an acid or ...
(Date:10/11/2017)... LAGUNA HILLS, Calif. , Oct. 11, 2017  SkylineDx ... London (ICR) and University of Leeds ... to risk-stratify patients with multiple myeloma (MM), in a multi-centric ... The University of Leeds is the ... UK, and ICR will perform the testing services to include ...
(Date:10/10/2017)... ... October 10, 2017 , ... San Diego-based team building and cooking events ... announced today. The bold new look is part of a transformation to increase ... a significant growth period. , It will also expand its service offering from its ...
Breaking Biology Technology:
(Date:4/5/2017)... 2017 KEY FINDINGS The global ... a CAGR of 25.76% during the forecast period of ... factor for the growth of the stem cell market. ... MARKET INSIGHTS The global stem cell market is ... geography. The stem cell market of the product is ...
(Date:3/30/2017)... 30, 2017  On April 6-7, 2017, Sequencing.com will ... hackathon at Microsoft,s headquarters in ... focus on developing health and wellness apps that provide ... the Genome is the first hackathon for personal ... largest companies in the genomics, tech and health industries ...
(Date:3/29/2017)...  higi, the health IT company that operates the ... , today announced a Series B investment from ... The new investment and acquisition accelerates higi,s strategy to ... population health activities through the collection and workflow integration ... collects and secures data today on behalf of over ...
Breaking Biology News(10 mins):