Revealing hidden antiferromagnetic correlations in doped Hubbard chains via string correlators
Abstract
Strongly interacting electrons lined up along a string can experience the so-called spin-charge separation, where the electrons “split” into effective carriers of spin and charge, which then move independently. This phenomenon has been observed, somewhat indirectly, in solids. Hilker et al. show spin-charge separation in a direct way by using a one-dimensional (1D) array of cold atoms, playing the role of electrons, whose degrees of freedom of spin and charge can be monitored using a fermionic quantum gas microscope. Empty sites in the 1D lattice moved freely without disturbing the underlying antiferromagnetic order.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 04, 2017
- Source ID
- 10.1126/science.aam8990
Entities
People
- Ahmed Omran
- Christian Gross
- Eugene A. Demler
- Fabian Grusdt
- Guillaume Salomon
- Immanuel Bloch
- Martin Boll
- Timon A Hilker
Organizations
- Air Force Office of Scientific Research
- Gordon and Betty Moore Foundation
- Harvard University
- Horizon 2020
- Ludwig-Maximilians-Universität München
- Max Planck Institute of Quantum Optics
- Max Planck Society
- National Science Foundation