Physics Department - Society of Physics Students Seminar, Queens Campus

October 13, 2009 12:10 PM - 1:30 PM
St. Albert Hall B-37

St. John’s Chapter

Society of Physics Students

presents 

Alive! Life as a State of Matter

Dr. Robert W. Finkel

Department of Physics

St. John's University

 

 

The coherence of organisms presents a fundamental problem in life sciences. How does a living cell function as a whole while it consists of astronomical numbers of many different types of interacting molecules?

Among the attributes of every cell are elaborate systems of information flow and nanometer-sized “motors” far beyond our present abilities to reproduce in laboratories.

Statistical treatments of molecules as classical entities cannot explain the specificity and speed of reactions that are common in organisms. A theory of organization will be required to explain the coherence of life in more than simple descriptive terms. Some investigators suggest that quantum mechanics plays a non­trivial role in biology to overcome the failures of classical models of chemical coherence. We embrace this view and outline a theory that addresses the fundamental question and reproduces results for two experiments.

About the picture: A kinesin motor protein carries a vesicle along a microtubule. The Schrödinger equation shown in the picture governs how a quantum mechanical system evolves.

Come join us! Food and drinks will be served.