Pure pairing modes in trapped fermion systems
We present numerical predictions for the shape of the pairing fluctuations in harmonically trapped atomic 6Li with two spin projections, based on the fluiddynamical description of cold fermions with pairing interactions. In previous works it has been shown that when the equilibrium of a symmetric mi...
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
2013
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 05012caa a22007217a 4500 | ||
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| 001 | PAPER-11856 | ||
| 003 | AR-BaUEN | ||
| 005 | 20250506082941.0 | ||
| 008 | 190411s2013 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-84892961135 | |
| 030 | |a JLTPA | ||
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Capuzzi, P. | |
| 245 | 1 | 0 | |a Pure pairing modes in trapped fermion systems |
| 260 | |c 2013 | ||
| 270 | 1 | 0 | |m Hernández, E.S.; Department of Physics, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina; email: shernand@df.uba.ar |
| 504 | |a Capuzzi, P., Hernández, E.S., Szybisz, L., (2008) Phys. Rev. A, 78, p. 0436191 | ||
| 504 | |a Capuzzi, P., Hernández, E.S., Szybisz, L., (2010) Eur. Phys. J. D, 60, p. 347 | ||
| 504 | |a Hernández, E.S., Capuzzi, P., Szybisz, L., (2011) J. Low Temp. Phys., 162, p. 281 | ||
| 504 | |a Hernández, E.S., Capuzzi, P., Szybisz, L., (2011) J. Low Temp. Phys., 162, p. 274 | ||
| 504 | |a Giorgini, S., Pitaevskii, L.P., Stringari, S., (2008) Rev. Mod. Phys., 80, p. 1215 | ||
| 504 | |a Capuzzi, P., Hernández, E.S., Szybisz, L., (2012) J. Low Temp. Phys., 166, p. 242 | ||
| 504 | |a Anderson, P.W., (1958) Phys. Rev., 112, p. 1900 | ||
| 504 | |a Bogoliubov, N.N., (1958) Sov. Phys. JETP, 34, p. 41 | ||
| 504 | |a Leggett, A.J., (1966) Phys. Rev., 147, p. 119 | ||
| 504 | |a Bruun, G.M., (2002) Phys. Rev. Lett., 89, p. 263002 | ||
| 504 | |a Bruun, G.M., Heiselberg, H., (2002) Phys. Rev. A, 65, p. 053407 | ||
| 504 | |a Bulgac, A., Yoon, S., (2009) Phys. Rev. Lett., 102, p. 085302 | ||
| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a We present numerical predictions for the shape of the pairing fluctuations in harmonically trapped atomic 6Li with two spin projections, based on the fluiddynamical description of cold fermions with pairing interactions. In previous works it has been shown that when the equilibrium of a symmetric mixture is perturbed, the linearized fluiddynamic equations decouple into two sets, one containing the sound mode of fermion superfluids and the other the pairing mode. The latter corresponds to oscillations of the modulus of the complex gap and is driven by the kinetic energy densities of the particles and of the pairs. Assuming proportionality between the heat flux and the energy gradient, the particle kinetic energy undergoes a diffusive behavior and the diffusion parameter is the key parameter for the relaxation time scale. We examine a possible range of values for this parameter and find that the shape of the pairing oscillation is rather insensitive to the precise value of the transport coefficient. Moreover, the pairing fluctuation is largely confined to the center of the trap, and the energy of the pairing mode is consistent with the magnitude of the equilibrium gap. © Springer Science+Business Media, LLC 2012. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, UBACYT 20020100200156 | ||
| 536 | |a Detalles de la financiación: Acknowledgements This work has been performed under grants PIP 0546 from CONICET, Argentina, and UBACYT 20020100200156 from University of Buenos Aires. | ||
| 593 | |a Department of Physics, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina | ||
| 593 | |a Comisión Nacional de Energía Atómica, Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a FERMION SUPERFLUID |
| 690 | 1 | 0 | |a HARMONIC CONFINEMENT |
| 690 | 1 | 0 | |a MASSIVE MODE |
| 690 | 1 | 0 | |a PAIRING FLUCTUATIONS |
| 690 | 1 | 0 | |a HARMONIC CONFINEMENT |
| 690 | 1 | 0 | |a KINETIC ENERGY DENSITY |
| 690 | 1 | 0 | |a MASSIVE MODE |
| 690 | 1 | 0 | |a NUMERICAL PREDICTIONS |
| 690 | 1 | 0 | |a PAIRING FLUCTUATIONS |
| 690 | 1 | 0 | |a PARTICLE KINETIC ENERGY |
| 690 | 1 | 0 | |a RELAXATION TIME SCALE |
| 690 | 1 | 0 | |a TRANSPORT COEFFICIENT |
| 690 | 1 | 0 | |a HEAT FLUX |
| 690 | 1 | 0 | |a KINETIC ENERGY |
| 690 | 1 | 0 | |a KINETICS |
| 690 | 1 | 0 | |a SPIN FLUCTUATIONS |
| 690 | 1 | 0 | |a DIFFUSION IN LIQUIDS |
| 700 | 1 | |a Hernández, Ester Susana | |
| 700 | 1 | |a Szybisz, L. | |
| 773 | 0 | |d 2013 |g v. 171 |h pp. 362-368 |k n. 3-4 |p J. Low Temp. Phys. |x 00222291 |w (AR-BaUEN)CENRE-327 |t Journal of Low Temperature Physics | |
| 856 | 4 | 1 | |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-84892961135&doi=10.1007%2fs10909-012-0762-9&partnerID=40&md5=8d9a844e4b6269077de5c78adc54f5ce |y Registro en Scopus |
| 856 | 4 | 0 | |u https://doi.org/10.1007/s10909-012-0762-9 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_00222291_v171_n3-4_p362_Capuzzi |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222291_v171_n3-4_p362_Capuzzi |y Registro en la Biblioteca Digital |
| 961 | |a paper_00222291_v171_n3-4_p362_Capuzzi |b paper |c PE | ||
| 962 | |a info:eu-repo/semantics/article |a info:ar-repo/semantics/artículo |b info:eu-repo/semantics/publishedVersion | ||
| 963 | |a VARI | ||
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