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Pregled bibliografske jedinice broj: 861715

Absence of full many-body localization in the disordered Hubbard chain


Prelovšek, Peter; Barišić, Osor Slaven; Žnidarič, Marko
Absence of full many-body localization in the disordered Hubbard chain // Physical review B. Rapid communications, 94 (2016), 241104-1 doi:10.1103/PhysRevB.94.241104 (međunarodna recenzija, članak, znanstveni)


Naslov
Absence of full many-body localization in the disordered Hubbard chain

Autori
Prelovšek, Peter ; Barišić, Osor Slaven ; Žnidarič, Marko

Izvornik
Physical review B. Rapid communications (1082-586X) 94 (2016); 241104-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Many-body ; localization ; Hubbard ; strong correlations ; cold-atom experiments

Sažetak
We present numerical results within the one-dimensional disordered Hubbard model for several characteristic indicators of the many-body localization (MBL). Considering traditionally studied charge disorder (i.e., the same disorder strength for both spin orientations) we find that even at strong disorder all signatures consistently show that while charge degree of freedom is nonergodic, the spin is delocalized and ergodic. This indicates the absence of the full MBL in the model that has been simulated in recent cold-atom experiments. Full localization can be restored if spin-dependent disorder is used instead.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove
Institut za fiziku, Zagreb

Autor s matičnim brojem:
Osor-Slaven Barišić, (226036)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • SCI-EXP, SSCI i/ili A&HCI


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