Bose-Fermi transmutation for one-dimensional harmonic trap

2021/04/27 by J. Nisperuza, Nisperuza, J., JP Rubio +3
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Quantum Gases (cond-mat.quant-gas)

paper · pdf · doi:10.48550/arxiv.2104.14409

openalex publication_date 2021/04/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Using Density Matrix renormalization group (DMRG), we study the ground state properties of spin one-half fermions and scalar bosons in the soft-core limit, with weak s-wave inter and intra species interactions. We considered the system subject to one-dimensional (1D) optical lattice and a superimposed potential at zero temperature, in the framework of Bose-Fermi-Hubbard model. We found that for certain fillings and interaction parameters, a transmutation occurs between the ground states of bosons and fermions when the densities are exchanged. We too report that the density distributions of bosons and fermions overlap with each other in a bosonic and fermionic Mott plateau, when the interaction parameters fulfill the relationship U_BB>U_BF

Related

• Bose-Fermi mixture in one-dimensional optical lattices with hard-core interactions
• Ground state of a mixture of SU(3) fermions and scalar bosons
• Enhancement of boson superfluidity in a one-dimensional Bose-Fermi mixture
• Dimensional crossover and finite-range effects in a quasi-two-dimensional gas of fermionic dimers
• Quantum degenerate Bose-Fermi mixtures on 1-D optical lattices