Journal
PHYSICAL REVIEW A
Volume 85, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.85.063608
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Funding
- Deutsche Forschungsgemeinschaft through FOR [801]
- European Commission
- National Research Foundation
- Ministry of Education, Singapore
- NSF [NSF PHY05-51164, DMR-0955707]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1339564] Funding Source: National Science Foundation
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We present a systematic investigation of attractive binary mixtures in the presence of both spin- and mass-imbalance in one-dimensional setups described by the Hubbard model. After discussing typical cold atomic experimental realizations and the relation between microscopic and effective parameters, we study several many-body features of trapped Fermi-Fermi and Bose-Bose mixtures such as density profiles, momentum distributions, and correlation functions by means of density-matrix-renormalization-group and quantum Monte Carlo simulations. In particular, we focus on the stability of Fulde-Ferrell-Larkin-Ovchinnikov, dimer, and trimer fluids in inhomogeneous situations, as typically realized in cold gas experiments due to the harmonic confinement. We finally consider possible experimental signatures of these phases both in the presence of a finite polarization and of a finite temperature.
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