Absence of full many-body localization in the disordered Hubbard chain (CROSBI ID 236503)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Prelovšek, Peter ; Barišić, Osor Slaven ; Žnidarič, Marko
engleski
Absence of full many-body localization in the disordered Hubbard chain
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.
many-body ; localization ; Hubbard ; strong correlations ; cold-atom experiments
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
94 (24)
2016.
241104
5
objavljeno
1082-586X
1089-4896
10.1103/PhysRevB.94.241104