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PAIR FLUCTUATIONS IN THE GROUND-STATE OF A 2-DIMENSIONAL ATTRACTIVE FERMI GAS
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UNSPECIFIED (1994) PAIR FLUCTUATIONS IN THE GROUND-STATE OF A 2-DIMENSIONAL ATTRACTIVE FERMI GAS. In: International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors IV (M2S-HTSC IV), GRENOBLE, FRANCE, JUL 05-09, 1994. Published in: PHYSICA C, 235 (Part 4). pp. 2353-2354. ISSN 0921-4534.
Research output not available from this repository, contact author.Abstract
The excitation spectrum of pair fluctuations in the ground state of a dilute two-dimensional (2D) attractive Fermi-gas is studied for different coupling regimes. In the strong-coupling limit the spectrum has the Bogolubov form, but in the weak-coupling regime there are two types of the pair excitations (different from two-fermion scattering states): (i) long-wavelength collective mode with the cutoff at momentum q(c) similar to 1/xi(0), where xi(0) is the pair size, and (ii) pair excitations with q greater than or equal to root 8m mu.
| Item Type: | Conference Item (UNSPECIFIED) | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | PHYSICA C | ||||
| Publisher: | ELSEVIER SCIENCE BV | ||||
| ISSN: | 0921-4534 | ||||
| Official Date: | December 1994 | ||||
| Dates: |
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| Volume: | 235 | ||||
| Number: | Part 4 | ||||
| Number of Pages: | 2 | ||||
| Page Range: | pp. 2353-2354 | ||||
| Publication Status: | Published | ||||
| Title of Event: | International Conference on Materials and Mechanisms of Superconductivity - High Temperature Superconductors IV (M2S-HTSC IV) | ||||
| Location of Event: | GRENOBLE, FRANCE | ||||
| Date(s) of Event: | JUL 05-09, 1994 |
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