Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Yabu, Hiroyuki"'
The polarized dipolar Fermi gas shows exotic properties at low temperatures, characterized by an axially-deformed Fermi surface and anisotropic single-particle energy, due to the long-range and anisotropic nature of dipole-dipole interaction. In cold
Externí odkaz:
http://arxiv.org/abs/2404.14866
Dynamical properties of homogeneous Fermi-Fermi mixtures of dipolar and non-dipolar atoms are studied at zero temperature, where dipoles are polarized by an external field. We calculate the density-density correlation functions in a ring-diagram appr
Externí odkaz:
http://arxiv.org/abs/2404.14762
Autor:
Nishimura, Kazuya, Nakano, Eiji, Iida, Kei, Tajima, Hiroyuki, Miyakawa, Takahiko, Yabu, Hiroyuki
Publikováno v:
Phys. Rev. A 103, 033324 (2021)
An impurity atom immersed in an ultracold atomic Fermi gas can form a quasiparticle, so-called Fermi polaron, due to impurity-fermion interaction. We consider a three-dimensional homogeneous dipolar Fermi gas as a medium, where the interatomic dipole
Externí odkaz:
http://arxiv.org/abs/2010.15558
Publikováno v:
Phys. Rev. A 99, 033624 (2019)
Single-atomic impurities immersed in a dilute Bose gas in the spherically symmetric harmonic trap potentials are studied at zero temperature. In order to find the ground state of the polarons, we present a conditional variational method with fixed ex
Externí odkaz:
http://arxiv.org/abs/1901.02847
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We have calculated the zero-temperature binding energy of a single impurity atom immersed in a Bose-Einstein condensate of ultracold atoms that are trapped in an axially symmetric harmonic potential, where the impurity interacts with bosonic atoms in
Externí odkaz:
http://arxiv.org/abs/1610.00421
Autor:
Nakano, Eiji, Yabu, Hiroyuki
Publikováno v:
Phys. Rev. B 93, 205144 (2016)
We investigate the ground state properties of the gaseous mixture of a single species of bosons and fermions at zero temperature, where bosons are major in population over fermions, and form the Bose-Einstein condensate (BEC). The boson-boson and bos
Externí odkaz:
http://arxiv.org/abs/1512.04757
Publikováno v:
Phys. Rev. A 90, 063629 (2014)
We investigate the mechanical instability toward density collapse and the transition temperature of Bose-Einstein condensation in the weakly coupled boson-fermion many-body mixture of single-component boson and fermion gases, in the case of the repul
Externí odkaz:
http://arxiv.org/abs/1412.4491
We study the breathing oscillations in bose-fermi mixtures in the axially-symmetric deformed trap of prolate, spherical and oblate shapes, and clarify the deformation dependence of the frequencies and the characteristics of collective oscillations. T
Externí odkaz:
http://arxiv.org/abs/1407.1117
Autor:
Maruyama, Tomoyuki, Yabu, Hiroyuki
Publikováno v:
JOURNAL OF PHYSICS B46, 055201 (2013)
We study the breathing oscillations in bose-fermi mixtures with Yb isotopes in the largely prolate deformed trap, which are realized by Kyoto group. We choose the three combinations of the Yb isotopes, Yb170-Yb171, Yb170-Yb173 and Yb174-Yb173, whose
Externí odkaz:
http://arxiv.org/abs/1009.0975