Zobrazeno 1 - 10
of 147
pro vyhledávání: '"Dyke, Paul"'
We revisit the study of amplitude oscillations in a pair condensate of fermions after an interaction quench, and generalize it to nonzero temperature. For small variations of the order parameter, we show that the energy transfer during the quench det
Externí odkaz:
http://arxiv.org/abs/2310.08154
Autor:
Hoinka, Sascha, Dyke, Paul, Lingham, Marcus G., Kinnunen, Jami J., Bruun, Georg M., Vale, Chris J.
Spontaneous symmetry breaking is a central paradigm of elementary particle physics, magnetism, superfluidity and superconductivity. According to Goldstone's theorem, phase transitions that break continuous symmetries lead to the existence of gapless
Externí odkaz:
http://arxiv.org/abs/1707.00406
Publikováno v:
Phys. Rev. A 96, 053608 (2017)
We theoretically investigate superfluidity in a strongly interacting Fermi gas confined to two dimensions at finite temperature. Using a Gaussian pair fluctuation theory in the superfluid phase, we calculate the superfluid density and determine the c
Externí odkaz:
http://arxiv.org/abs/1702.07091
Publikováno v:
Phys. Rev. A 92, 063636 (2015)
Understanding the formation of Cooper pairs and the resulting thermodynamic properties of a low-dimensional Fermi gas is an important area of research, elucidating our understanding of high temperature superconductors. In lower dimensions quantum flu
Externí odkaz:
http://arxiv.org/abs/1509.08225
Publikováno v:
New Journal of Physics 16, 083023 (2014)
We theoretically investigate first and second sound modes of a unitary Fermi gas trapped in a highly oblate harmonic trap at finite temperatures. Following the idea by Stringari and co-workers {[}Phys. Rev. Lett. \textbf{105}, 150402 (2010){]}, we ar
Externí odkaz:
http://arxiv.org/abs/1410.1340