Ebook: Collective Effects in Quantum Statistics of Radiation and Matter
- Genre: Physics // Thermodynamics and Statistical Mechanics
- Tags: Statistical Physics Dynamical Systems and Complexity
- Series: Mathematical Physics Studies 9
- Year: 1988
- Publisher: Springer Netherlands
- Edition: 1
- Language: English
- pdf
Material particles, electrons, atoms, molecules, interact with one another by means of electromagnetic forces. That is, these forces are the cause of their being combined into condensed (liquid or solid) states. In these condensed states, the motion of the particles relative to one another proceeds in orderly fashion; their individual properties as well as the electric and magnetic dipole moments and the radiation and absorption spectra, ordinarily vary little by comparison with their properties in the free state. Exceptiotls are the special so-called collective states of condensed media that are formed under phase transitions of the second kind. The collective states of matter are characterized to a high degree by the micro-ordering that arises as a result of the interaction between the particles and which is broken down by chaotic thermal motion under heating. Examples of such pheonomena are the superfluidity of liquid helium, and the superconductivity and ferromagnetism of metals, which exist only at temperatures below the critical temperature. At low temperature states the particles do not exhibit their individual characteristics and conduct themselves as a single whole in many respects. They flow along capillaries in ordered fashion and create an undamped current in a conductor or a macroscopic magnetic moment. In this regard the material acquires special properties that are not usually inherent to it.
Content:
Front Matter....Pages i-xii
Functional integrals in quantum theory....Pages 1-31
Superfluid Bose systems....Pages 32-65
Superfluid Fermi systems....Pages 66-102
Interaction of Radiation with Matter. The Linear Theory....Pages 103-121
Superradiant Phase Transitions....Pages 122-159
Superradiant Coherent Impulses....Pages 160-203
Back Matter....Pages 204-215
Content:
Front Matter....Pages i-xii
Functional integrals in quantum theory....Pages 1-31
Superfluid Bose systems....Pages 32-65
Superfluid Fermi systems....Pages 66-102
Interaction of Radiation with Matter. The Linear Theory....Pages 103-121
Superradiant Phase Transitions....Pages 122-159
Superradiant Coherent Impulses....Pages 160-203
Back Matter....Pages 204-215
....