摘要:

In the usual development of quantum statistical mechanics the microcanonical ensemble is introduced in order to present the basic postulates of this subject with utmost clarity. However practical calculations of elementary problems using the microcanonical ensemble directly are seldom carried out. Either the method of the most probable distribution is introduced, or the canonical ensemble is introduced. Both of these methods require the development of further mathematical and physical concepts.It is shown here that very elementary methods can be used to develop the thermodynamic properties of monatomic crystals and the “corrected” Boltzmann monatomic gas directly from the basic concepts of the microcanonical ensemble.For more complex problems, it is shown that the microcanonical ensemble emphasizes the relation between basic concepts in statistical mechanics and certain unsolved problems in the theory of numbers.

ISSN:0002-9505    

DOI:10.1119/1.1969861

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP

摘要:

This is a condensation of a paper given at the Physics Section Meeting of the American Association for the Advancement of Science in Philadelphia, 29 December 1962, by J. Theodore Peters and M. Lalevic of the Drexel Institute of Technology.A plea is made for more colleges and universities to offer emission or atomic spectroscopy as an undergraduate elective. So much of our knowledge today of the mechanism of radiation, of atomic structure, and of properties of atomic nuclei resulted from spectroscopic research. It seems only natural then to expectmorecourse offerings in this field. Further evidence is given for the need for more work in higher reaches of theoretical spectroscopy. There is still much to be discovered and checked and tabulated as to emission lines for many of the 102 elements.

ISSN:0002-9505    

DOI:10.1119/1.1969862

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1969863

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1969865

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1969871

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1969877

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1969878

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP

ISSN:0002-9505    

DOI:10.1119/1.1969881

出版商:American Association of Physics Teachers    

年代:1964

数据来源: AIP