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:12/4/2016)... ... December 03, 2016 , ... ... studies. A microbiome impact grant award has been made to Dr. Renato Polimanti ... smoking and drinking on the oral microbiome. Grant proposals have been vetted by ...
(Date:12/2/2016)... (PRWEB) , ... December 02, 2016 , ... ... MA to soon resume cervical and lumbar disc production, company President, Jake Lubinski ... surgeons who are implanting the AxioMed disc in Bern, Lucerne, and Zurich to ...
(Date:12/2/2016)... Dec. 2, 2016 Amgen (NASDAQ: AMGN ... announced the submission of a Marketing Authorization Application (MAA) to ... candidate to Avastin ® (bevacizumab). The companies believe this ... EMA. "The submission of ABP 215 to ... expand our oncology portfolio," said Sean E. Harper , ...
(Date:12/2/2016)... ... December 01, 2016 , ... ACEA Biosciences, Inc. announced ... I/II clinical trials for AC0010 at the World Conference on Lung Cancer 2016, taking ... update on the phase I/II clinical trials for AC0010 in patients with advanced non-small ...
Breaking Biology Technology:
(Date:6/7/2016)... June 7, 2016  Syngrafii Inc. and San ... relationship that includes integrating Syngrafii,s patented LongPen™ eSignature ... This collaboration will result in greater convenience for ... union, while maintaining existing document workflow and compliance ... ...
(Date:6/2/2016)...   The Weather Company , an IBM Business (NYSE: ... capability in which consumers will be able to interact with ... via voice or text and receive relevant information about the ... Marketers have long sought an advertising solution that can create ... relevant and valuable; and can scale across millions of interactions ...
(Date:5/24/2016)... patient care by providing unparalleled technology to leaders of the medical imaging industry.  As ... added to the range of products distributed by Ampronix. Photo - ... ... ... ...
Breaking Biology News(10 mins):