Murmann, S.; Deuretzbacher, F.; Zürn, G.; Bjerlin, J.; Reimann, S.M. et al.: Antiferromagnetic heisenberg spin chain of a few cold atoms in a one-dimensional trap. In: Physical Review Letters 115 (2015), Nr. 21, 215301. DOI:
https://doi.org/10.1103/PhysRevLett.115.215301
Abstract: |
We report on the deterministic preparation of antiferromagnetic Heisenberg spin chains consisting of up to four fermionic atoms in a one-dimensional trap. These chains are stabilized by strong repulsive interactions between the two spin components without the need for an external periodic potential. We independently characterize the spin configuration of the chains by measuring the spin orientation of the outermost particle in the trap and by projecting the spatial wave function of one spin component on single-particle trap levels. Our results are in good agreement with a spin-chain model for fermionized particles and with numerically exact diagonalizations of the full few-fermion system. © 2015 American Physical Society.
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License of this version: |
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Publication type: |
Article |
Publishing status: |
publishedVersion |
Publication date: |
2015 |
Keywords english: |
Antiferromagnetism, Fermions, Lanthanum compounds, Spin dynamics, Wave functions, Antiferromagnetics, Diagonalizations, Heisenberg spin chains, Periodic potentials, Repulsive interactions, Spin chain models, Spin configurations, Spin orientations, Chains
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DDC: |
530 | Physik
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