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Autor:
Zinner, N. T., Nygaard, N. G.
Publikováno v:
Few-Body Systems: Volume 56, Issue 2 (2015), Page 125-131
We use a minimal zero-range model for describing the bound state spectrum of three-body states consisting of two Cesium and one Lithium atom. Using a broad Feshbach resonance model for the two-body interactions, we show that recent experimental data
Externí odkaz:
http://arxiv.org/abs/1403.0759
Autor:
Block, J. Kusk, Nygaard, N.
Publikováno v:
Phys. Rev. A 81, 053421 (2010)
We consider the fate of the Dirac points in the spectrum of a honeycomb optical lattice in the presence of a harmonic confining potential. By numerically solving the tight binding model we calculate the density of states, and find that the energy dep
Externí odkaz:
http://arxiv.org/abs/1002.3044
Publikováno v:
Phys. Rev. A 79, 063615 (2009)
We consider an atomic Fermi gas confined in a uniform optical lattice potential, where the atoms can pair into molecules via a magnetic field controlled narrow Feshbach resonance. Thus by adjusting the magnetic field the portion of fermionic and boso
Externí odkaz:
http://arxiv.org/abs/0901.3625
Publikováno v:
Phys. Rev. A 79, 052701 (2009)
We consider elastic single-particle scattering from a one-dimensional two-component trapped superfluid Fermi gas when the incoming projectile particle is identical to one of the confined species. Our theoretical treatment is based on the Hartree-Fock
Externí odkaz:
http://arxiv.org/abs/0811.4284
Publikováno v:
Phys. Rev. A 79, 053601 (2009)
We consider an atomic Fermi gas confined in a uniform optical lattice potential, where the atoms can pair into molecules via a magnetic field controlled narrow Feshbach resonance. The phase diagram of the resulting atom-molecule mixture in chemical a
Externí odkaz:
http://arxiv.org/abs/0810.2696
Publikováno v:
Phys. Rev. A 78, 033611 (2008)
The theory of scattering of atom pairs in a periodic potential is presented for the case of different atoms. When the scattering dynamics is restricted to the lowest Bloch band of the periodic potential, a separation in relative and average discrete
Externí odkaz:
http://arxiv.org/abs/0808.0120
Publikováno v:
Phys. Rev. A 78, 023617 (2008)
We analyze the scattering and bound state physics of a pair of atoms in a one-dimensional optical lattice interacting via a narrow Feshbach resonance. The lattice provides a structured continuum allowing for the existence of bound dimer states both b
Externí odkaz:
http://arxiv.org/abs/0802.3808
Publikováno v:
Phys. Rev. A 77, 021601(R) (2008)
We present the theory of a pair of atoms in a one-dimensional optical lattice interacting via a narrow Feshbach resonance. Using a two-channel description of the resonance, we derive analytic results for the scattering states inside the continuum ban
Externí odkaz:
http://arxiv.org/abs/0708.2329
Publikováno v:
Phys. Rev. A 77, 015401 (2008)
Full, three dimensional, time-dependent simulations are presented demonstrating the quantized transfer of angular momentum to a Bose-Einstein condensate from a laser carrying orbital angular momentum in a Laguerre-Gaussian mode. The process is descri
Externí odkaz:
http://arxiv.org/abs/0707.3698