Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Texas A&M Physics Professor Who Invented ’Quantum Afterburner’ Revs Up Perfect Engine

27.02.2003


Marlan Scully, the Texas A&M University professor who applied quantum physics to the automotive engine and came up with a design that emits laser beams instead of exhaust, has been tinkering under the hood again. This time, he’s sized up the perfect engine -- and improved it.

Scully, known as the "Quantum Cowboy" for his innovations in quantum physics and his Franklin Society prize-winning research into beef cattle production, has invented a theoretical design more efficient than the Carnot engine, which had stood for nearly two centuries as the standard for efficiency -- an engine so ideal it exists only in theory.

In an article published this month in Science, Scully reveals a design that extends it. Scully’s design employs lasers, mirrors and a concept known as "quantum coherence" to drive a piston with less wasted energy than in the Carnot model.



In Scully’s engine, a quantum heat bath supplies the power: beams of hot atoms produce radiation whose pressure drives a piston. Scully likens the atoms to coal and the radiation to steam that drove early railroad engines.

Scully, a member of the National Academy of Sciences who holds joint appointments in physics and electrical engineering, is world-renowned for his work. But even though he and his collaborators have improved the engine that had been considered perfect, Scully makes clear that they have not rewritten the laws of physics -- the second law of thermodynamics is not violated, he says, and perpetual motion is still a dream.

The new engine model follows Scully’s recent invention of the "quantum afterburner," designed to capture energy from a car’s exhaust, thus improving the efficiency of a classical four-stroke engine. The quantum afterburner uses a process that drains heat from the heat-engine gases and converts it into laser light.


###
Contact: Mark Minton, Communications Specialist, Texas A&M University College of Science 979-862-1237 mminton@science.tamu.edu; Marlan Scully 979-862-2333.

Mark Minton | EurekAlert!
Further information:
http://www.tamu.edu/

More articles from Physics and Astronomy:

nachricht NASA laser communications to provide Orion faster connections
30.03.2017 | NASA/Goddard Space Flight Center

nachricht Pinball at the atomic level
30.03.2017 | Max-Planck-Institut für Struktur und Dynamik der Materie

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

'On-off switch' brings researchers a step closer to potential HIV vaccine

30.03.2017 | Health and Medicine

Penn studies find promise for innovations in liquid biopsies

30.03.2017 | Health and Medicine

An LED-based device for imaging radiation induced skin damage

30.03.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>