Details
| Original language | English |
|---|---|
| Pages (from-to) | 4 |
| Number of pages | 1 |
| Journal | Physical Review Letters |
| Volume | 92 |
| Issue number | 5 |
| Publication status | Published - 3 Feb 2004 |
Abstract
A mixture of ultracold bosons and fermions placed in an optical lattice constitutes a novel kind of quantum gas, and leads to phenomena, which so far has been discussed neither in atomic physics, nor in condensed matter physics. We discuss the phase diagram at low temperatures, and in the limit of strong atom-atom interactions, and predict the existence of quantum phases that involve pairing of fermions with one or more bosons, or, respectively, bosonic holes. The resulting composite fermions may form, depending on the system parameters, a normal Fermi liquid, a density wave, a superfluid liquid, or an insulator with fermionic domains. We discuss the feasibility for observing such phases in current experiments.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Letters, Vol. 92, No. 5, 03.02.2004, p. 4.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Atomic Bose-Fermi Mixtures in an Optical Lattice
AU - Lewenstein, Maciej
AU - Santos, Luis
AU - Baranov, M. A.
AU - Fehrmann, Henning
PY - 2004/2/3
Y1 - 2004/2/3
N2 - A mixture of ultracold bosons and fermions placed in an optical lattice constitutes a novel kind of quantum gas, and leads to phenomena, which so far has been discussed neither in atomic physics, nor in condensed matter physics. We discuss the phase diagram at low temperatures, and in the limit of strong atom-atom interactions, and predict the existence of quantum phases that involve pairing of fermions with one or more bosons, or, respectively, bosonic holes. The resulting composite fermions may form, depending on the system parameters, a normal Fermi liquid, a density wave, a superfluid liquid, or an insulator with fermionic domains. We discuss the feasibility for observing such phases in current experiments.
AB - A mixture of ultracold bosons and fermions placed in an optical lattice constitutes a novel kind of quantum gas, and leads to phenomena, which so far has been discussed neither in atomic physics, nor in condensed matter physics. We discuss the phase diagram at low temperatures, and in the limit of strong atom-atom interactions, and predict the existence of quantum phases that involve pairing of fermions with one or more bosons, or, respectively, bosonic holes. The resulting composite fermions may form, depending on the system parameters, a normal Fermi liquid, a density wave, a superfluid liquid, or an insulator with fermionic domains. We discuss the feasibility for observing such phases in current experiments.
UR - http://www.scopus.com/inward/record.url?scp=84871225991&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.92.050401
DO - 10.1103/PhysRevLett.92.050401
M3 - Article
AN - SCOPUS:84871225991
VL - 92
SP - 4
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 5
ER -