Pregled bibliografske jedinice broj: 1009707
Frustration, entanglement, and correlations in quantum many-body systems
Frustration, entanglement, and correlations in quantum many-body systems // Physical Review A, 88 (2013), 2; 020301, 5 doi:10.1103/PhysRevA.88.020301 (međunarodna recenzija, članak, ostalo)
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Naslov
Frustration, entanglement, and correlations in quantum many-body systems
Autori
Marzolino, U. ; Giampaolo, S. M. ; Illuminati, F.
Izvornik
Physical Review A (1050-2947) 88
(2013), 2;
020301, 5
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo
Ključne riječi
frustration
Sažetak
(Received 25 February 2013 ; published 1 August 2013) We derive an exact lower bound to a universal measure of frustration in degenerate ground states of quantum many-body systems. The bound results in the sum of two contributions: entanglement and classical correlations arising from local measurements. We show that average frustration properties are completely determined by the behavior of the maximally mixed ground state. We identify sufficient conditions for a quantum spin system to saturate the bound, and for models with twofold degeneracy we prove that average and local frustration coincide.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
