Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > A study lays the foundations for tomograpics applied to the quantum world

(OIC/UC3M)
(OIC/UC3M)

Abstract:
Scientists at the Universidad Carlos III of Madrid (UC3M) have proven the validity of tomographic representation of quantum states, which can help quantum technologies transmit information more safely and efficiently.

A study lays the foundations for tomograpics applied to the quantum world

Madrid | Posted on June 7th, 2010

Any physical system - be it an electron, a molecule of water, a virus, a human being, a whole planet - is characterized at each moment in time distinctively and specifically in a specific place by particular characteristics. This is what we call the "state of the system", but when one tries to describe said "state" precisely according to our current knowledge of the laws governing the universe, it is necessary to appeal to abstract formulations since the laws of quantum physics, the theory of physics which best describes the universe in which we live, are different from those that govern Newton's classical physics. In the last century various scientists obtained different representations which help to understand the world of quantum mechanics, which prevails in the area of the smallest things, of the subatomic. Now researchers at UC3M working with the tomographic description of quantum states have proven that it is equivalent to classic descriptions carried out by the great scientists of the 20th century in that they contain the same information and are equally as rich as the classic descriptions.

"We are trying to mark the limits of the conceptual aspects of tomographical representation of quantum states and we just finished proving that the tomographical representation of quantum states is complete, meaning that it is just as good as the traditional representations from Schrodinger, Heisenberg, Dirac, etc.", states the UC3M professor Alberto Ibort. He has been carrying out research in this area for some years and has recently published a summary of his discoveries on the tomography of quantum states in an article in the journal Physics Letters A, in collaboration with scientists from Lebedev Physics Institute (Russia) and the Frederico II University of Naples (Italy).

The quantum world in detail

What these researchers are trying to do is dissect quantum states in order to describe their true nature in a similar, although more sophisticated, way in which some hospital diagnostic machines work. "A tomographic image of a quantum state describes the quantum state completely, the same as an ordinary tomographic image allows us to see an organism or a body in complete detail", explains Professor Ibort, of the Mathematics Department of UC3M. In this way, a tomographic image of a quantum state is a mathematical function obtained when carrying out certain manipulations of the physical system intended for analysis, in the same way that computerized tomography used in hospitals obtains a function of the density of human tissue in any direction in order to reconstruct a 3D image of our body.

The use of tomography techniques can have huge implications in communication technology, according to the researchers. "If quantum tomography is developed in the same way as medical tomography, we could use methods derived from it to improve information transfer through quantum channels," states Alberto Ibort. And one of the principal applications of quantum technologies is the manipulation and transfer of information using quantum properties of light. In this sense, quantum tomography permits the manipulation of light at a quantum level in a different and more versatile way. For example, one could think of "compressing" quantum information (qbits) using a tomographic representation of it, according to experts.

The field of Quantum Information is one of the most promising areas of development within Physics and it is even more relevant in quantum cryptography and quantum computation. These technologies promise, for example, absolutely secure communication and immense computational capacity, in that they are destined to revolutionize our lives in the same way laser or personal computers have.

The researchers at UC3M lead the research project QUITEMAD (QUatnum Information Technologies MADrid), a scientific consortium which brings together experts in quantum Information from the Universidad Complutense of Madrid, the Universidad Politécnica of Madrid and the Consejo Superior de Investigaciones Científicas (The Spanish National Research Council), with the support of national and international companies and funding from the Comunidad de Madrid (Madrid Autonomous Region) and the European Social Fund. "We are working in collaboration with other members of QUITEMAD on the development of techniques from the telecommunications world for use in quantum tomography and we would particularly like to develop an analogue to the sampling techniques which are so useful in the telecommunications domain in analysis of certain kinds of quantum states," reveals professor Ibort.

QUITEMAD has five specific research objectives: quantum cryptography, quantum computation, quantum control and tomography, quantum correlations and quantum simulation. These five lines of research have relevant scientific and technological applications ranging from quantum cryptography implementation in the industrial sector to the development and application of new computation and information techniques, including their experimental application in collaboration with national and international laboratories. Besides these scientific objectives, the project has strategic considerations such as to educate new teams in quantum information technology capable of meeting the future challenges of universities and industry, with the aim of endowing Madrid the status of excellence and being at the forefront of Europe and the world.

####

For more information, please click here

Copyright © Universidad Carlos III de Madrid

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Nanolab Technologies LEAPS Forward with High-Performance Analysis Services to the World: Nanolab Orders Advanced Local Electrode Atom Probe (LEAP®) Microscope from CAMECA Unit of AMETEK Materials Analysis Division August 27th, 2015

Possible Futures

Sediment dwelling creatures at risk from nanoparticles in common household products August 13th, 2015

Harris & Harris Group Reports Financial Statements as of June 30, 2015, and Announces a Stock Repurchase Program August 10th, 2015

Molecular trick alters rules of attraction for non-magnetic metals August 5th, 2015

Global Carbon Nanotubes Industry 2015: Acute Market Reports August 4th, 2015

Academic/Education

Announcing Oxford Instruments and School of Physics signing a Memorandum of Understanding August 26th, 2015

Kwansei Gakuin University in Hyogo, Japan, uses Raman microscopy to study crystallographic defects in silicon carbide wafers August 25th, 2015

JPK reports on the use of a NanoWizard® AFM-SECM system at the Université Paris Diderot looking at nanoscale biostructures August 18th, 2015

Rice, Penn State open center for 2-D coatings: National Science Foundation selects universities to develop atom-thin materials with industry partners August 13th, 2015

Nanomedicine

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

These microscopic fish are 3-D-printed to do more than swim: Researchers demonstrate a novel method to build microscopic robots with complex shapes and functionalities August 26th, 2015

Glitter from silver lights up Alzheimer's dark secrets August 25th, 2015

Quantum Computing

A little light interaction leaves quantum physicists beaming August 25th, 2015

Surprising discoveries about 2-D molybdenum disulfide: Berkeley Lab researchers use award-winning campanile probe on promising semiconductor August 15th, 2015

New optical chip lights up the race for quantum computer August 14th, 2015

Quantum computing advance locates neutral atoms August 12th, 2015

Announcements

Small but heading for the big time: Nanobiotix half year results for the six months ended 30 June 2015, in line with expectations: Major clinical achievements and corporate developments August 28th, 2015

A new technique to make drugs more soluble August 28th, 2015

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Nanolab Technologies LEAPS Forward with High-Performance Analysis Services to the World: Nanolab Orders Advanced Local Electrode Atom Probe (LEAP®) Microscope from CAMECA Unit of AMETEK Materials Analysis Division August 27th, 2015

Research partnerships

Nanocatalysts improve processes for the petrochemical industry August 28th, 2015

Announcing Oxford Instruments and School of Physics signing a Memorandum of Understanding August 26th, 2015

Researchers combine disciplines, computational programs to determine atomic structure August 26th, 2015

Developing Component Scale Composites Using Nanocarbons August 26th, 2015

Quantum nanoscience

Quantum diffraction at a breath of nothing: Physicists build stable diffraction structure in atomically thin graphene August 25th, 2015

Southampton scientists find new way to detect ortho-para conversion in water August 25th, 2015

A little light interaction leaves quantum physicists beaming August 25th, 2015

Molecular trick alters rules of attraction for non-magnetic metals August 5th, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic