Multipartite quantum correlations reveal frustration in a quantum Ising spin system
| Autor: | Anil Kumar, Aditi Sen, T. S. Mahesh, Hemant Katiyar, K. Rama Koteswara Rao, Ujjwal Sen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Physics
Quantum correlation media_common.quotation_subject NMR Research Centre (Formerly Sophisticated Instruments Facility) Frustration State (functional analysis) Atomic and Molecular Physics and Optics Multipartite Quantum mechanics Ising spin Condensed Matter::Strongly Correlated Electrons Ground state Adiabatic process Quantum media_common |
| Zdroj: | IndraStra Global. |
| ISSN: | 2381-3652 |
| Popis: | We report a nuclear magnetic resonance experiment, which simulates the quantum transverse Ising spin system in a triangular configuration, and further demonstrate that multipartite quantum correlations can be used to distinguish between the frustrated and the nonfrustrated regimes in the ground state of this system. Adiabatic state preparation methods are used to prepare the ground states of the spin system. We employ two different multipartite quantum correlation measures to analyze the experimental ground state of the system in both the frustrated and the nonfrustrated regimes. As expected from theoretical predictions, the experimental data confirm that the nonfrustrated regime shows higher multipartite quantum correlations compared to the frustrated one. |
| Databáze: | OpenAIRE |
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