- #1
spaghetti3451
- 1,344
- 33
This extract is from my college notes.
"Because of the inherent difficulty of obtaining even grossly approximate solutions of the complete Schrodinger equation, one typically focuses on reduced formulations that are believed to capture the essential features of the problem of interest. This has resulted in a number of parallel strands in the study of the electronic properties of solids and is, in large part, responsible for the richness of the subject as a whole. Experiments are constantly discovering new phenomena that either must be accommodated within the existing theoretical framework, or provide the basis for expanding this framework by introducing new fundamental concepts. Theory, in turn, makes predictions that challenge existing concepts and which must be tested by experiments."
inherent: Why has this word been used?
complete: Wat are the incomplete and the complete versions?
reduced formulations: Reduced? How?
This has resulted in a number of parallel strands in the study of the electronic properties of solids and is, in large part, responsible for the richness of the subject as a whole.:
I don't understand.
for expanding this framework by introducing new fundamental concepts: And why should the new fundamntal concepts fit into (be consistent with) the old theroetical framework?
Theory makes predictions that challenge existing concepts: How can a self-consistent theory make predictions that challenge the theory?
Finally, I don't see any connection between the first two and the last two sentences.
Anyone that helps I thank.
"Because of the inherent difficulty of obtaining even grossly approximate solutions of the complete Schrodinger equation, one typically focuses on reduced formulations that are believed to capture the essential features of the problem of interest. This has resulted in a number of parallel strands in the study of the electronic properties of solids and is, in large part, responsible for the richness of the subject as a whole. Experiments are constantly discovering new phenomena that either must be accommodated within the existing theoretical framework, or provide the basis for expanding this framework by introducing new fundamental concepts. Theory, in turn, makes predictions that challenge existing concepts and which must be tested by experiments."
inherent: Why has this word been used?
complete: Wat are the incomplete and the complete versions?
reduced formulations: Reduced? How?
This has resulted in a number of parallel strands in the study of the electronic properties of solids and is, in large part, responsible for the richness of the subject as a whole.:
I don't understand.
for expanding this framework by introducing new fundamental concepts: And why should the new fundamntal concepts fit into (be consistent with) the old theroetical framework?
Theory makes predictions that challenge existing concepts: How can a self-consistent theory make predictions that challenge the theory?
Finally, I don't see any connection between the first two and the last two sentences.
Anyone that helps I thank.