Pregled bibliografske jedinice broj: 310897
Single-particle density matrix and the momentum distribution of dark “ solitons” in a Tonks-Girardeau gas
Single-particle density matrix and the momentum distribution of dark “ solitons” in a Tonks-Girardeau gas // Physical Review A, 76 (2007), 0436091-9 (međunarodna recenzija, članak, znanstveni)
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Naslov
Single-particle density matrix and the momentum distribution of dark “ solitons” in a Tonks-Girardeau gas
Autori
Buljan, Hrvoje ; Lelas, Karlo ; Pezer, Robert ; Jablan, Marinko
Izvornik
Physical Review A (1050-2947) 76
(2007);
0436091-9
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
bosons; strongly correlated systems; solitons; density matrix
Sažetak
We study the reduced single-particle density matrix (RSPDM), the momentum distribution, and natural orbitals and their occupancies of dark “ soliton” (DS) states in a Tonks-Girardeau gas. DS states are specially tailored excited many-body eigenstates, which have a dark solitonic notch in their single-particle density. The momentum distribution of DS states has a characteristic shape with two sharp spikes. We find that the two spikes arise due to the high degree of correlation observed within the RSPDM between the mirror points (x and − x) with respect to the dark notch at x=0 ; the correlations oscillate rather than decay as the points x and − x are being separated.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Projekti:
119-0000000-1015 - Nelinearne pojave i valna dinamika u fotoničkim sustavima (Buljan, Hrvoje, MZOS ) ( CroRIS)
Ustanove:
Prirodoslovno-matematički fakultet, Zagreb
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
