Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 205302 |
| Fachzeitschrift | Physical Review Letters |
| Jahrgang | 100 |
| Ausgabenummer | 20 |
| Publikationsstatus | Veröffentlicht - 22 Mai 2008 |
Abstract
The compensation of quadratic Zeeman effect and trap energy in high-spin fermions is shown to lead to resonances in the spin-changing collisions that are typically absent in spinor condensates and spin-1/2 fermions. We study these resonances in lattice fermions, showing that they permit the targeting of a particular spin-changing channel while suppressing the rest and the creation of magnetically insensitive superpositions of many-body states with entangled spin and trap degrees of freedom. Finally, the intersite tunneling may lead to a quantum phase transition described by a quantum Ising model.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Physical Review Letters, Jahrgang 100, Nr. 20, 205302, 22.05.2008.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Resonant spin-changing collisions in spinor fermi gases
AU - Bornemann, Nils
AU - Hyllus, Philipp
AU - Santos, Luis
PY - 2008/5/22
Y1 - 2008/5/22
N2 - The compensation of quadratic Zeeman effect and trap energy in high-spin fermions is shown to lead to resonances in the spin-changing collisions that are typically absent in spinor condensates and spin-1/2 fermions. We study these resonances in lattice fermions, showing that they permit the targeting of a particular spin-changing channel while suppressing the rest and the creation of magnetically insensitive superpositions of many-body states with entangled spin and trap degrees of freedom. Finally, the intersite tunneling may lead to a quantum phase transition described by a quantum Ising model.
AB - The compensation of quadratic Zeeman effect and trap energy in high-spin fermions is shown to lead to resonances in the spin-changing collisions that are typically absent in spinor condensates and spin-1/2 fermions. We study these resonances in lattice fermions, showing that they permit the targeting of a particular spin-changing channel while suppressing the rest and the creation of magnetically insensitive superpositions of many-body states with entangled spin and trap degrees of freedom. Finally, the intersite tunneling may lead to a quantum phase transition described by a quantum Ising model.
UR - http://www.scopus.com/inward/record.url?scp=44249117619&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.100.205302
DO - 10.1103/PhysRevLett.100.205302
M3 - Article
AN - SCOPUS:44249117619
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 20
M1 - 205302
ER -