Theoretical study of excitations in interacting Bose and Fermi systems (Record no. 48800)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02081nam a2200265Ia 4500 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 160627s2002||||xx |||||||||||||| ||und|| |
| 080 ## - UNIVERSAL DECIMAL CLASSIFICATION NUMBER | |
| Universal Decimal Classification number | UNM |
| Item number | TH-77 |
| 100 ## - MAIN ENTRY--AUTHOR NAME | |
| Personal name | Ghosh, Tarun Kanti |
| Relator term | author |
| 245 ## - TITLE STATEMENT | |
| Title | Theoretical study of excitations in interacting Bose and Fermi systems |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Year of publication | 2002 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Number of Pages | xii; 112p. |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | 2002 |
| 502 ## - DISSERTATION NOTE | |
| Degree Type | Ph.D |
| 502 ## - DISSERTATION NOTE | |
| Name of granting institution | University of Madras |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc | This thesis is devoted to theoretical study of various aspects of low energy collective excitations in a trapped interacting alkali-metal atomic gases (Bose and Fermi) and of fractional quantum hall systems. An equation of motion for velocity fluctuations of a two-dimensional deformed trapped Bose gas just above the critical temperature in the hydrodynamical regime is derived. From this equation, the eigenfrequencies and corresponding density fluctuations for a few lo-lying excitation modes are calculated. The method of averages are used to derive a dispersion relation in a deformed trap at very high temperature that interpolates between the collisionless and hydrodynamic regimes. The frequencies and the damping rates for monopole and quadrupole modes in both the regimes, are calculated using this dispersion relation. It is shown that the time evolution of the wave packet width of a Bose gas in a time-independent as well as time-dependent trap can be obtained from the method of averages. A general dispersion relation of monopole and two quadrupole excitations of a two dimensional deformed trapped interacting quantum gas. Also analytical expressions for monopole and two quadrupole mode frequencies of a two-dimensional unpolarized Fermi gas in an anisotropic trap, derived using this general dispersion relation. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical Term | Physics |
| 653 10 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Bose-Einstein Condensates |
| 653 10 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Low-Energy Excitations |
| 653 10 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Quantum Hall System |
| 653 10 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Quantum Systems |
| 690 ## - LOCAL SUBJECT ADDED ENTRY--TOPICAL TERM (OCLC, RLIN) | |
| Topical term or geographic name as entry element | Others |
| 720 1# - ADDED ENTRY--UNCONTROLLED NAME | |
| Thesis Advisor | Baskaran, G. |
| Relator term | Thesis advisor [ths] |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://www.imsc.res.in/xmlui/handle/123456789/103 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | THESIS & DISSERTATION |
| Withdrawn status | Lost status | Damaged status | Not for loan | Current library | Full call number | Uniform Resource Identifier | Koha item type |
|---|---|---|---|---|---|---|---|
| IMSc Library | UNM TH-77 | http://www.imsc.res.in/xmlui/handle/123456789/103 | THESIS & DISSERTATION |