Abstract
Monogamy of entanglement is a quantum mechanical property that limits quantum correlations shared among many parties. In an example strongly interacting spin system we examine approaches for approximating the ground state energy both from above and below by mean-field and N-representability methods, respectively. Due to strong competition among the terms in the Hamiltonian, the resulting ground-state wavefunction, although is entangled, does not possess entanglement that is proportional to the system size, thus obeying the monogamy of entanglement.
| Original language | English |
|---|---|
| Title of host publication | The Korepin Festschrift |
| Subtitle of host publication | From Statistical Mechanics to Quantum Information Science: A Collection of Articles Written in Honor of the 60th Birthday of Vladimir Korepin |
| Publisher | World Scientific Publishing Co. |
| Pages | 203-210 |
| Number of pages | 8 |
| ISBN (Electronic) | 9789814460323 |
| ISBN (Print) | 9789814460316 |
| DOIs | |
| State | Published - Jan 1 2013 |
Keywords
- Ground-state energy
- Monogamy of entanglement
- N-representability
- Spin systems
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