Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Bugnion, P. O."'
Publikováno v:
Physical Review A 90, 033626 (2014)
The contact interaction is often used in modeling ultracold atomic gases, although it leads to pathological behavior arising from the divergence of the many-body wavefunction when two particles coalesce. This makes it difficult to use this model inte
Externí odkaz:
http://arxiv.org/abs/1407.0040
We develop ultratransferable pseudopotentials for the contact interaction that are 100 times more accurate than contemporary approximations. The pseudopotential offers scattering properties very similar to the contact potential, has a smooth profile
Externí odkaz:
http://arxiv.org/abs/1403.0047
Publikováno v:
Phys. Rev. Lett. 111, 045301 (2013)
The few-fermion atomic gas is an ideal setting to explore inhomogeneous superfluid pairing analogous to the Larkin-Ovchinnikov state. Two up and one down-spin atom is the minimal configuration that displays an inhomogeneous pairing density whereas im
Externí odkaz:
http://arxiv.org/abs/1305.3717
Autor:
Bugnion, P. O., Conduit, G. J.
Publikováno v:
Phys. Rev. A 88, 013601 (2013)
Fermionic atoms trapped in a double well potential are an ideal setting to study fundamental exchange mechanisms. We use exact diagonalization and complementary analytic calculations to demonstrate that two trapped fermions deliver a minimal model of
Externí odkaz:
http://arxiv.org/abs/1304.3323
Autor:
Bugnion, P. O., Conduit, G. J.
We study the spin correlations of a few fermions in a quasi one-dimensional trap. Exact diagonalization calculations demonstrate that repulsive interactions between the two species drives ferromagnetic correlations. The ejection probability of an ato
Externí odkaz:
http://arxiv.org/abs/1304.3299