Quantum discord versus second-order MQ NMR coherence intensity in dimers
arXiv:1109.6420 · doi:10.1016/j.physleta.2012.01.047
Abstract
We consider the quantum discord in a two-particle spin-1/2 system (dimer) governed by the standard multiple quantum (MQ) Hamiltonian and reveal the relation between the discord and the intensity of the second-order MQ coherence. Since the coherence intensities may be measured in experiment, we obtain a method of detecting the quantum discord in experiment. Comparison of discord and concurrence is represented.
13 pages, 3 figures
References in corpus (13)
- Quantum discord and the power of one qubit
- Interpreting quantum discord through quantum state merging
- Multipartite Nonlocality without Entanglement in Many Dimensions
- On the role of entanglement and correlations in mixed-state quantum computation
- Environment-induced sudden transition in quantum discord dynamics
- Experimental detection of non-classical correlations in mixed state quantum computation
- Quantum discord in spin-cluster materials
- Evolution of spin entanglement and an entanglement witness in multiple-quantum NMR experiments
- Experimental implementation of a NMR entanglement witness
- Geometric measure of quantum discord over two-sided projective measurements
- Asymmetry of bipartite quantum discord
- Quantum Entanglement in Nitrosyl Iron Complexes
- Unitary invariant discord as a measure of bipartite quantum correlations in an -qubit quantum system
Cited by in corpus (6)
- Quantum correlations in different density matrix representations of spin-1/2 open chain
- Quantum and classical correlations in high temperature dynamics of two coupled large spins
- Quantum Correlations in NMR systems
- Quantum entanglement and quantum discord in dimers in multiple quantum NMR experiments
- Quantum discord in the central spin model
- Tomographic Discord and Quantum Correlations for System of Qubits