Three-spin interactions and entanglement in optical lattices
Abstract
The entanglement properties of some novel quantum systems are studied that are inspired by recent developments in cold-atom technology. A triangular optical lattice of two atomic species can be employed to generate a variety of spin-1/2 Hamiltonians including effective three-spin interactions. A variety of one or two dimensional systems can thus be realized that possess multi-degenerate ground states or non-vanishing chirality. The properties of these ground states and their phase transitions are probed with appropriate measures such as the entropic entanglement and the spin chirality.
- Publication:
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arXiv e-prints
- Pub Date:
- May 2005
- DOI:
- 10.48550/arXiv.quant-ph/0505225
- arXiv:
- arXiv:quant-ph/0505225
- Bibcode:
- 2005quant.ph..5225P
- Keywords:
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- Quantum Physics
- E-Print:
- 9 pages, 6 figures, talk presented at the De Giorgi Workshop on Entanglement in Physical and Information Science, Pisa 2004